diff --git a/lib/core/constants/report_type.dart b/lib/core/constants/report_type.dart
new file mode 100644
index 00000000..5199181d
--- /dev/null
+++ b/lib/core/constants/report_type.dart
@@ -0,0 +1,26 @@
+enum ReportType {
+  post('POST'),
+  comment('COMMENT'),
+  chatRoom('CHAT_ROOM'),
+  user('USER')
+  ;
+
+  final String value;
+
+  const ReportType(this.value);
+}
+
+enum ReportReason {
+  swear("욕설이 많아요"),
+  disrespect("상대를 존중하지 않아요"),
+  offensive("불쾌감을 느끼는 발언을 해요"),
+  aggressive("공격적인 언어를 사용해요"),
+  discrimination("신분, 장애, 인종에 대해 차별 발언을 일삼아요"),
+  badName("부적절한 이름을 사용해요"),
+  etc("기타")
+  ;
+
+  final String label;
+
+  const ReportReason(this.label);
+}
diff --git a/lib/core/design_system/components/custom_popup_menu_button.dart b/lib/core/design_system/components/custom_popup_menu_button.dart
index bd319a87..00a96d7f 100644
--- a/lib/core/design_system/components/custom_popup_menu_button.dart
+++ b/lib/core/design_system/components/custom_popup_menu_button.dart
@@ -15,6 +15,7 @@ class CustomPopupMenuButton extends StatelessWidget {
     return PopupMenuButton(
       offset: const Offset(-6, 13),
       color: AppColors.white,
+
       borderRadius: AppRadius.baseRadius,
       constraints: BoxConstraints(minWidth: 0),
       itemBuilder: itemBuilder,
diff --git a/lib/presentation/post/widgets/post_report_dialog.dart b/lib/core/design_system/components/custom_report_dialog.dart
similarity index 53%
rename from lib/presentation/post/widgets/post_report_dialog.dart
rename to lib/core/design_system/components/custom_report_dialog.dart
index 404f8187..925415a4 100644
--- a/lib/presentation/post/widgets/post_report_dialog.dart
+++ b/lib/core/design_system/components/custom_report_dialog.dart
@@ -1,56 +1,73 @@
-
 import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:ondo/core/constants/report_type.dart';
 import 'package:ondo/core/design_system/app_colors.dart';
 import 'package:ondo/core/design_system/app_layout.dart';
 import 'package:ondo/core/design_system/app_text_styles.dart';
 import 'package:ondo/core/design_system/component_variants.dart';
 import 'package:ondo/core/design_system/components/custom_button.dart';
+import 'package:ondo/core/design_system/components/custom_tag_card.dart';
 import 'package:ondo/core/design_system/components/custom_textfield.dart';
-import 'package:ondo/presentation/profile/widget/report_reason_chip.dart';
+import 'package:ondo/domain/usecases/report/report_use_case.dart';
 
-class PostReportDialog extends StatefulWidget {
-  const PostReportDialog({
+class CustomReportDialog extends StatefulWidget {
+  const CustomReportDialog({
     super.key,
+    required this.type,
+    required this.targetId,
   });
 
+  final ReportType type;
+  final String targetId;
+
   @override
-  State<PostReportDialog> createState() => _PostReportDialogState();
+  State<CustomReportDialog> createState() => _CustomReportDialogState();
 }
 
-class _PostReportDialogState extends State<PostReportDialog> {
+class _CustomReportDialogState extends State<CustomReportDialog> {
   final TextEditingController controller = TextEditingController();
 
-  final List<String> _reasons = [
-    "욕설이 많아요",
-    "상대를 존중하지 않아요",
-    "불쾌감을 느끼는 발언을 해요",
-    "공격적인 언어를 사용해요",
-    "신분, 장애, 인종에 대해 차별 발언을 일삼아요",
-    "부적절한 이름을 사용해요",
-    "기타",
-  ];
+  final Set<ReportReason> _selectedReasons = {};
 
-  final Set<String> _selectedReasons = {};
+  String get _title => switch (widget.type) {
+    ReportType.post => '게시물 신고',
+    ReportType.comment => '댓글 신고',
+    ReportType.chatRoom => '채팅방 신고',
+    ReportType.user => '유저 신고',
+  };
 
   bool get _isValid =>
       _selectedReasons.isNotEmpty || controller.text.trim().isNotEmpty;
 
-  void _toggleReason(String reason) {
-    setState(() {
-      if (_selectedReasons.contains(reason)) {
-        _selectedReasons.remove(reason);
-      } else {
-        _selectedReasons.add(reason);
-      }
-    });
-  }
-
   Future<void> _submitReport() async {
     if (!_isValid) return;
+    final description = [
+      if (_selectedReasons.isNotEmpty) ...[
+        'tags',
+        ..._selectedReasons.map((e) => e.label),
+      ],
+      if (controller.text.trim().isNotEmpty) ...[
+        'detail',
+        controller.text.trim(),
+      ],
+    ].join('\n');
 
+    await Get.find<ReportUseCase>()(
+      targetType: widget.type,
+      targetId: widget.targetId,
+      description: description,
+    );
+
+    if (!mounted) return;
     Navigator.pop(context);
   }
 
+  @override
+  void dispose() {
+    controller.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Dialog(
@@ -68,7 +85,7 @@ class _PostReportDialogState extends State<PostReportDialog> {
             mainAxisSize: MainAxisSize.min,
             crossAxisAlignment: CrossAxisAlignment.center,
             children: [
-              Center(child: Text("게시물 신고", style: AppTextStyles.titleBold20())),
+              Center(child: Text(_title, style: AppTextStyles.titleBold20())),
               AppGap.v16,
               SizedBox(
                 width: MediaQuery.of(context).size.width,
@@ -76,12 +93,20 @@ class _PostReportDialogState extends State<PostReportDialog> {
                   crossAxisAlignment: WrapCrossAlignment.start,
                   spacing: AppSpacing.s12,
                   runSpacing: AppSpacing.s12,
-                  children: _reasons.map(
-                        (e) {
-                      return ReportReasonChip(
-                        label: e,
-                        isSelected: _selectedReasons.contains(e),
-                        onTap: () => _toggleReason(e),
+                  children: ReportReason.values.map(
+                    (r) {
+                      return CustomTagCard(
+                        label: r.label,
+                        isSelected: _selectedReasons.contains(r),
+                        onTap: (isSelect) {
+                          setState(() {
+                            if (isSelect) {
+                              _selectedReasons.add(r);
+                            } else {
+                              _selectedReasons.remove(r);
+                            }
+                          });
+                        },
                       );
                     },
                   ).toList(),
diff --git a/lib/core/design_system/components/custom_tag_card.dart b/lib/core/design_system/components/custom_tag_card.dart
index fd8c0417..272885cb 100644
--- a/lib/core/design_system/components/custom_tag_card.dart
+++ b/lib/core/design_system/components/custom_tag_card.dart
@@ -3,48 +3,41 @@ import 'package:ondo/core/design_system/app_colors.dart';
 import 'package:ondo/core/design_system/app_layout.dart';
 import 'package:ondo/core/design_system/app_text_styles.dart';
 
+typedef SelectTag = void Function(bool isSelect);
+
 class CustomTagCard extends StatelessWidget {
-  final String tag;
-  final Color? color;
-  final void Function(bool isSelect)? onTap;
-  final ValueNotifier<bool> isSelect;
+  final String label;
+  final bool isSelected;
+  final SelectTag? onTap;
 
-  CustomTagCard({
+  const CustomTagCard({
     super.key,
-    required this.tag,
-    this.color,
+    required this.label,
+    this.isSelected = false,
     this.onTap,
-    bool isSelect = false,
-  }) : isSelect = ValueNotifier(isSelect);
+  });
 
   @override
   Widget build(BuildContext context) {
-    return ValueListenableBuilder(
-      valueListenable: isSelect,
-      builder: (context, value, child) {
-        return GestureDetector(
-          behavior: HitTestBehavior.opaque,
-          onTap: () {
-            isSelect.value = !isSelect.value;
-            onTap?.call(isSelect.value);
-          },
-          child: Container(
-            padding: AppPadding.chip,
-            decoration: BoxDecoration(
-              borderRadius: BorderRadius.circular(8),
-              color: isSelect.value
-                  ? AppColors.primary
-                  : color ?? AppColors.white,
-            ),
-            child: Text(
-              tag,
-              style: AppTextStyles.textMedium(
-                textColor: isSelect.value ? AppColors.white : AppColors.gray90,
-              ),
-            ),
+    final foregroundColor = isSelected ? AppColors.white : AppColors.gray90;
+    final backgroundColor = isSelected ? AppColors.primary : AppColors.gray20;
+
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onTap: () => onTap?.call(!isSelected),
+      child: Container(
+        padding: AppPadding.chip,
+        decoration: BoxDecoration(
+          borderRadius: AppRadius.baseRadius,
+          color: backgroundColor,
+        ),
+        child: Text(
+          label,
+          style: AppTextStyles.textMedium(
+            textColor: foregroundColor,
           ),
-        );
-      },
+        ),
+      ),
     );
   }
 }
diff --git a/lib/core/router/bindings/navigation_binding.dart b/lib/core/router/bindings/navigation_binding.dart
index e4d3eddc..bfa7f6c6 100644
--- a/lib/core/router/bindings/navigation_binding.dart
+++ b/lib/core/router/bindings/navigation_binding.dart
@@ -7,6 +7,7 @@ import 'package:ondo/core/router/bindings/home_binding.dart';
 import 'package:ondo/core/router/bindings/notification_binding.dart';
 import 'package:ondo/core/router/bindings/post_binding.dart';
 import 'package:ondo/core/router/bindings/profile_binding.dart';
+import 'package:ondo/core/router/bindings/report_binding.dart';
 import 'package:ondo/core/router/bindings/user_binding.dart';
 import 'package:ondo/data/datasource/auth/auth_local_datasource_impl.dart';
 import 'package:ondo/data/datasource/auth/auth_remote_datasource.dart';
@@ -38,8 +39,9 @@ class NavigationBinding extends Bindings {
 
     /// 전 화면 공통 controller 등록
     Get.lazyPut<NavigationController>(() => NavigationController());
-    NotificationBinding().dependencies();
 
+    NotificationBinding().dependencies();
+    ReportBinding().dependencies();
     UserBinding().dependencies();
     PostBinding().dependencies();
 
diff --git a/lib/core/router/bindings/post_view_binding.dart b/lib/core/router/bindings/post_view_binding.dart
index f9cfe262..ce74e1a6 100644
--- a/lib/core/router/bindings/post_view_binding.dart
+++ b/lib/core/router/bindings/post_view_binding.dart
@@ -30,7 +30,6 @@ class PostViewBinding extends Bindings {
 
   @override
   void dependencies() {
-
     // Post UseCases
     Get.lazyPut<GetPostDetailUseCase>(
       () => GetPostDetailUseCase(
@@ -56,7 +55,6 @@ class PostViewBinding extends Bindings {
       ),
     );
 
-
     // Comment DataSource
     Get.lazyPut<CommentRemoteDataSource>(
       () => CommentRemoteDataSourceImpl(
diff --git a/lib/core/router/bindings/report_binding.dart b/lib/core/router/bindings/report_binding.dart
new file mode 100644
index 00000000..487fee3b
--- /dev/null
+++ b/lib/core/router/bindings/report_binding.dart
@@ -0,0 +1,23 @@
+import 'package:get/get.dart';
+import 'package:ondo/data/datasource/report/report_remote_datasource.dart';
+import 'package:ondo/data/network/clients/auth_client.dart';
+import 'package:ondo/data/repositories/report/report_repository_impl.dart';
+import 'package:ondo/domain/repositories/report/report_repository.dart';
+import 'package:ondo/domain/usecases/report/report_use_case.dart';
+
+class ReportBinding extends Bindings {
+  @override
+  void dependencies() {
+    Get.lazyPut(
+      () => ReportRemoteDatasource(Get.find<AuthClient>()),
+    );
+
+    Get.lazyPut<ReportRepository>(
+      () => ReportRepositoryImpl(Get.find<ReportRemoteDatasource>()),
+    );
+
+    Get.lazyPut(
+      () => ReportUseCase(Get.find<ReportRepository>()),
+    );
+  }
+}
diff --git a/lib/data/datasource/comment/comment_remote_datasource.dart b/lib/data/datasource/comment/comment_remote_datasource.dart
index 5e44eaa9..1dbe6ad4 100644
--- a/lib/data/datasource/comment/comment_remote_datasource.dart
+++ b/lib/data/datasource/comment/comment_remote_datasource.dart
@@ -5,7 +5,10 @@ import 'package:ondo/data/models/comment/response/comment_model.dart';
 
 abstract class CommentRemoteDataSource {
   Future<List<CommentModel>> getComments(int postId);
-  Future<void> createComment({required int postId, required String content});
+  Future<bool> createComment({
+    required int postId,
+    required String content,
+  });
   Future<void> deleteComment(int commentId);
 }
 
@@ -57,7 +60,7 @@ class CommentRemoteDataSourceImpl implements CommentRemoteDataSource {
   }
 
   @override
-  Future<void> createComment({
+  Future<bool> createComment({
     required int postId,
     required String content,
   }) async {
@@ -81,6 +84,8 @@ class CommentRemoteDataSourceImpl implements CommentRemoteDataSource {
       if (body['success'] != true) {
         throw Exception(body['message']);
       }
+
+      return true;
     } catch (e) {
       log.errorLog(e);
       rethrow;
diff --git a/lib/data/datasource/post/post_remote_datasource.dart b/lib/data/datasource/post/post_remote_datasource.dart
index 01ae7faf..aabd7361 100644
--- a/lib/data/datasource/post/post_remote_datasource.dart
+++ b/lib/data/datasource/post/post_remote_datasource.dart
@@ -17,7 +17,7 @@ class PostRemoteDatasource {
       final res = await _client.get(Uri.parse("${ApiConstants.post}/popular"));
 
       final body = jsonDecode(res.body);
-      log.serverLog(body, stausCode: res.statusCode);
+      log.serverLog(body, statusCode: res.statusCode);
 
       if (res.statusCode == 200 && body["success"] == true) {
         return body["data"];
diff --git a/lib/data/datasource/report/report_remote_datasource.dart b/lib/data/datasource/report/report_remote_datasource.dart
new file mode 100644
index 00000000..cc898fdd
--- /dev/null
+++ b/lib/data/datasource/report/report_remote_datasource.dart
@@ -0,0 +1,37 @@
+import 'dart:convert';
+
+import 'package:http/http.dart';
+import 'package:ondo/data/models/report/request/report_request_model.dart';
+import 'package:ondo/data/network/constants/api_constants.dart';
+
+class ReportRemoteDatasource {
+  final BaseClient _client;
+
+  ReportRemoteDatasource(this._client);
+
+  Future<bool> report(ReportRequestModel model) async {
+    final log = ApiConstants(logName: '신고 접수 서버');
+
+    try {
+      final res = await _client.post(
+        Uri.parse(ApiConstants.report),
+        headers: ApiConstants.baseHeader,
+        body: jsonEncode(model.toJson()),
+      );
+
+      final body = jsonDecode(res.body);
+
+      log.successLog(body['success']);
+      log.messageLog(body['message']);
+
+      if (res.statusCode == 200 && body['success'] == true) {
+        return true;
+      }
+      log.statusLog(res.statusCode);
+    } catch (e) {
+      log.errorLog(e);
+    }
+
+    return false;
+  }
+}
diff --git a/lib/data/models/report/request/report_request_model.dart b/lib/data/models/report/request/report_request_model.dart
new file mode 100644
index 00000000..5c4d86a0
--- /dev/null
+++ b/lib/data/models/report/request/report_request_model.dart
@@ -0,0 +1,19 @@
+import 'package:ondo/core/constants/report_type.dart';
+
+class ReportRequestModel {
+  final ReportType targetType;
+  final String targetId;
+  final String description;
+
+  ReportRequestModel({
+    required this.targetType,
+    required this.targetId,
+    required this.description,
+  });
+
+  Map<String, dynamic> toJson() => {
+    'targetType': targetType.value,
+    'targetId': targetId,
+    'description': description,
+  };
+}
diff --git a/lib/data/network/constants/api_constants.dart b/lib/data/network/constants/api_constants.dart
index f10570b0..e8785ab7 100644
--- a/lib/data/network/constants/api_constants.dart
+++ b/lib/data/network/constants/api_constants.dart
@@ -24,6 +24,8 @@ class ApiConstants {
 
   static String get comment => "${Env.apiBaseUrl}/comments";
 
+  static String get report => "${Env.apiBaseUrl}/reports";
+
   static const baseHeader = {"Content-Type": "application/json"};
 
   //TODO : 임시 로그인 데이터
@@ -31,9 +33,9 @@ class ApiConstants {
 
   static String get loginPassword => Env.loginPassword;
 
-  void serverLog(Map body, {int? stausCode}) {
-    if (stausCode != null) {
-      statusLog(stausCode);
+  void serverLog(Map body, {int? statusCode}) {
+    if (statusCode != null) {
+      statusLog(statusCode);
     }
     successLog(body["success"]);
     messageLog(body["message"]);
diff --git a/lib/data/repositories/comment/comment_repository_impl.dart b/lib/data/repositories/comment/comment_repository_impl.dart
index dff38f95..341725cc 100644
--- a/lib/data/repositories/comment/comment_repository_impl.dart
+++ b/lib/data/repositories/comment/comment_repository_impl.dart
@@ -19,12 +19,12 @@ class CommentRepositoryImpl implements CommentRepository {
   }
 
   @override
-  Future<void> createComment({
+  Future<bool> createComment({
     required int postId,
     required String content,
   }) async {
     try {
-      await remoteDataSource.createComment(
+      return await remoteDataSource.createComment(
         postId: postId,
         content: content,
       );
diff --git a/lib/data/repositories/report/report_repository_impl.dart b/lib/data/repositories/report/report_repository_impl.dart
new file mode 100644
index 00000000..d3a3f961
--- /dev/null
+++ b/lib/data/repositories/report/report_repository_impl.dart
@@ -0,0 +1,24 @@
+import 'package:ondo/core/constants/report_type.dart';
+import 'package:ondo/data/datasource/report/report_remote_datasource.dart';
+import 'package:ondo/data/models/report/request/report_request_model.dart';
+import 'package:ondo/domain/repositories/report/report_repository.dart';
+
+class ReportRepositoryImpl extends ReportRepository {
+  final ReportRemoteDatasource _remoteDatasource;
+
+  ReportRepositoryImpl(this._remoteDatasource);
+
+  @override
+  Future<bool> report(
+    ReportType targetType,
+    String targetId,
+    String description,
+  ) async {
+    final model = ReportRequestModel(
+      targetType: targetType,
+      targetId: targetId,
+      description: description,
+    );
+    return await _remoteDatasource.report(model);
+  }
+}
diff --git a/lib/domain/repositories/comment/comment_repository.dart b/lib/domain/repositories/comment/comment_repository.dart
index 8254239a..fbcbb29c 100644
--- a/lib/domain/repositories/comment/comment_repository.dart
+++ b/lib/domain/repositories/comment/comment_repository.dart
@@ -3,7 +3,7 @@ import 'package:ondo/data/models/comment/response/comment_model.dart';
 abstract class CommentRepository {
   Future<List<CommentModel>> getComments(int postId);
 
-  Future<void> createComment({
+  Future<bool> createComment({
     required int postId,
     required String content,
   });
diff --git a/lib/domain/repositories/report/report_repository.dart b/lib/domain/repositories/report/report_repository.dart
new file mode 100644
index 00000000..6f205f4c
--- /dev/null
+++ b/lib/domain/repositories/report/report_repository.dart
@@ -0,0 +1,9 @@
+import 'package:ondo/core/constants/report_type.dart';
+
+abstract class ReportRepository {
+  Future<bool> report(
+    ReportType targetType,
+    String targetId,
+    String description,
+  );
+}
diff --git a/lib/domain/usecases/comment/create_comment_usecase.dart b/lib/domain/usecases/comment/create_comment_usecase.dart
index 8c0a8d48..04b8b9c4 100644
--- a/lib/domain/usecases/comment/create_comment_usecase.dart
+++ b/lib/domain/usecases/comment/create_comment_usecase.dart
@@ -5,12 +5,12 @@ class CreateCommentUseCase {
 
   CreateCommentUseCase(this.repository);
 
-  Future<void> call({
+  Future<bool> call({
     required int postId,
     required String content,
   }) async {
     try {
-      await repository.createComment(
+      return await repository.createComment(
         postId: postId,
         content: content,
       );
@@ -18,4 +18,4 @@ class CreateCommentUseCase {
       throw Exception('댓글 작성 실패: $e');
     }
   }
-}
\ No newline at end of file
+}
diff --git a/lib/domain/usecases/report/report_use_case.dart b/lib/domain/usecases/report/report_use_case.dart
new file mode 100644
index 00000000..d3ec54bb
--- /dev/null
+++ b/lib/domain/usecases/report/report_use_case.dart
@@ -0,0 +1,16 @@
+import 'package:ondo/core/constants/report_type.dart';
+import 'package:ondo/domain/repositories/report/report_repository.dart';
+
+class ReportUseCase {
+  final ReportRepository _repository;
+
+  ReportUseCase(this._repository);
+
+  Future<bool> call({
+    required ReportType targetType,
+    required String targetId,
+    required String description,
+  }) async {
+    return await _repository.report(targetType, targetId, description);
+  }
+}
diff --git a/lib/presentation/chat/controllers/chat_room_controller.dart b/lib/presentation/chat/controllers/chat_room_controller.dart
index 2fac61da..4e45427c 100644
--- a/lib/presentation/chat/controllers/chat_room_controller.dart
+++ b/lib/presentation/chat/controllers/chat_room_controller.dart
@@ -3,8 +3,9 @@ import 'dart:collection';
 import 'dart:convert';
 import 'dart:developer';
 
-import 'package:flutter/cupertino.dart';
-import 'package:flutter/widgets.dart';
+import 'package:flutter/material.dart';
+import 'package:ondo/core/constants/report_type.dart';
+import 'package:ondo/core/design_system/components/custom_report_dialog.dart';
 import 'package:ondo/data/datasource/media/media_remote_datasource.dart';
 import 'package:get/get.dart';
 import 'package:ondo/core/design_system/components/custom_alert_dialog.dart';
@@ -402,7 +403,10 @@ class ChatRoomController extends GetxController with WidgetsBindingObserver {
         }
       } else {
         // 상대방 메시지 → 리스트 앞에 삽입
-        final viewModel = ChatMessageViewModel.fromJson(json, myPublicId: _myPublicId);
+        final viewModel = ChatMessageViewModel.fromJson(
+          json,
+          myPublicId: _myPublicId,
+        );
         viewChatList.insert(0, viewModel);
         log('[ChatRoom] 메시지 수신: $content');
 
@@ -428,7 +432,7 @@ class ChatRoomController extends GetxController with WidgetsBindingObserver {
     }
   }
 
-  Future _initLoadChatRoomMessages() async {
+  Future<void> _initLoadChatRoomMessages() async {
     final res = await loadChatRoomMessageUseCase.call(
       chatRoomPublicId: chatRoomId,
       cursor: 0,
@@ -487,7 +491,7 @@ class ChatRoomController extends GetxController with WidgetsBindingObserver {
   /// - 내가 보낸 메시지 즉시 UI 반영 (isMe: true, messageId: null)
   /// - 서버 echo 수신 시 _onMessageReceived에서 messageId가 업데이트된다
   /// - IMAGE 타입은 추후 구현 예정
-  void sendChat(String content) {
+  void sendMessage(String content) {
     final trimmed = content.trim();
     if (trimmed.isEmpty) return;
 
@@ -517,7 +521,7 @@ class ChatRoomController extends GetxController with WidgetsBindingObserver {
     textController.clear();
   }
 
-  Future backChatRoom() async {
+  Future<void> back() async {
     // WebSocket 읽음 이벤트 전송
     sendReadEvent();
     // HTTP 읽음 처리 유지
@@ -528,7 +532,7 @@ class ChatRoomController extends GetxController with WidgetsBindingObserver {
     );
   }
 
-  Future quitChat() async {
+  Future<void> quit() async {
     Get.dialog(
       CustomAlertDialog(
         title: '커피챗 종료',
@@ -543,4 +547,10 @@ class ChatRoomController extends GetxController with WidgetsBindingObserver {
       ),
     );
   }
+
+  void report(BuildContext context) => showDialog(
+    context: context,
+    builder: (context) =>
+        CustomReportDialog(type: ReportType.chatRoom, targetId: chatRoomId),
+  );
 }
diff --git a/lib/presentation/chat/screens/chat_main_screen.dart b/lib/presentation/chat/screens/chat_main_screen.dart
index 58039a42..6d2ca261 100644
--- a/lib/presentation/chat/screens/chat_main_screen.dart
+++ b/lib/presentation/chat/screens/chat_main_screen.dart
@@ -20,7 +20,12 @@ class ChatMainScreen extends GetView<ChatMainController> {
             AppGap.v16,
             TagList(),
             AppGap.v16,
-            Expanded(child: ChatList()),
+            Expanded(
+              child: Padding(
+                padding: AppPadding.screenHorizontal,
+                child: ChatList(),
+              ),
+            ),
             AppGap.v16,
           ],
         ),
@@ -40,9 +45,12 @@ class TagList extends GetView<ChatMainController> {
       child: ListView.separated(
         padding: AppPadding.screenHorizontal,
         scrollDirection: Axis.horizontal,
-        itemBuilder: (context, index) => CustomTagCard(
-          tag: tags[index],
-          onTap: (isSelect) => controller.selectTag(tags[index], isSelect),
+        itemBuilder: (context, index) => Obx(
+          () => CustomTagCard(
+            label: tags[index],
+            isSelected: controller.selectTagList.contains(tags[index]),
+            onTap: (isSelect) => controller.selectTag(tags[index], isSelect),
+          ),
         ),
         itemCount: tags.length,
         separatorBuilder: (context, index) => AppGap.h16,
diff --git a/lib/presentation/chat/screens/chat_room_screen.dart b/lib/presentation/chat/screens/chat_room_screen.dart
index 2d312cde..da03f3d3 100644
--- a/lib/presentation/chat/screens/chat_room_screen.dart
+++ b/lib/presentation/chat/screens/chat_room_screen.dart
@@ -57,17 +57,22 @@ class ChatRoomScreen extends GetView<ChatRoomController> {
     ),
   );
 
-  Widget _chatList(int lastReadId, String opponentProfileUrl) => ListView.builder(
-    controller: controller.scrollController,
-    reverse: true,
-    itemBuilder: (context, index) {
-      final chat = controller.viewChatList[index];
-      return _chatBubble(chat, lastReadId, opponentProfileUrl);
-    },
-    itemCount: controller.viewChatList.length,
-  );
+  Widget _chatList(int lastReadId, String opponentProfileUrl) =>
+      ListView.builder(
+        controller: controller.scrollController,
+        reverse: true,
+        itemBuilder: (context, index) {
+          final chat = controller.viewChatList[index];
+          return _chatBubble(chat, lastReadId, opponentProfileUrl);
+        },
+        itemCount: controller.viewChatList.length,
+      );
 
-  Widget _chatBubble(ChatMessageViewModel chat, int lastReadId, String opponentProfileUrl) {
+  Widget _chatBubble(
+    ChatMessageViewModel chat,
+    int lastReadId,
+    String opponentProfileUrl,
+  ) {
     if (chat.isMe) {
       final isRead = chat.messageId != null && chat.messageId! <= lastReadId;
       return Row(
@@ -116,7 +121,7 @@ class ChatRoomScreen extends GetView<ChatRoomController> {
     () => CustomBackButton(
       moreOptions: true,
       useUserProfile: true,
-      backAction: controller.backChatRoom,
+      backAction: controller.back,
       subtitle: controller.isOpponentViewing.value
           ? '채팅 중'
           : controller.isOpponentOnline.value
@@ -136,14 +141,12 @@ class ChatRoomScreen extends GetView<ChatRoomController> {
           "커피챗 종료하기",
 
           ///종료 알림창 표시
-          controller.quitChat,
+          controller.quit,
         ),
         _customPopupMenu(
           "신고하기",
           //신고 기능
-          () {
-            //TODO : 신고 기능
-          },
+          () => controller.report(context),
         ),
       ],
     ),
diff --git a/lib/presentation/chat/widgets/chat_input_field.dart b/lib/presentation/chat/widgets/chat_input_field.dart
index a39e08c6..21daaac4 100644
--- a/lib/presentation/chat/widgets/chat_input_field.dart
+++ b/lib/presentation/chat/widgets/chat_input_field.dart
@@ -34,7 +34,7 @@ class ChatInputField extends GetView<ChatRoomController> {
               hintText: "메세지 내용을 입력해 주세요",
               maxLines: 2,
               onChanged: controller.onTypingChanged,
-              onSubmitted: controller.sendChat,
+              onSubmitted: controller.sendMessage,
             ),
           ),
           AppGap.h16,
@@ -45,7 +45,7 @@ class ChatInputField extends GetView<ChatRoomController> {
   }
 
   Widget _sendButton() => GestureDetector(
-    onTap: () => controller.sendChat(controller.textController.text),
+    onTap: () => controller.sendMessage(controller.textController.text),
     child: SvgPicture.asset(
       AppIcon.send.path,
       width: AppSpacing.s32,
diff --git a/lib/presentation/chat/widgets/chat_review_dialog.dart b/lib/presentation/chat/widgets/chat_review_dialog.dart
index e1fbdaee..adc59d58 100644
--- a/lib/presentation/chat/widgets/chat_review_dialog.dart
+++ b/lib/presentation/chat/widgets/chat_review_dialog.dart
@@ -58,19 +58,23 @@ class ChatReviewDialog extends GetView<ChatReviewController> {
 
   Widget _reviewCategoryList() => SizedBox(
     width: double.maxFinite,
-    child: Wrap(
-      direction: Axis.horizontal,
-      spacing: AppSpacing.s12,
-      runSpacing: AppSpacing.s12,
-      children: List.generate(
-        controller.baseCategories.length,
-        (index) => CustomTagCard(
-          onTap: (isSelect) => controller.selectReviewTag(
-            controller.baseCategories[index],
-            isSelect,
+    child: Obx(
+      () => Wrap(
+        direction: Axis.horizontal,
+        spacing: AppSpacing.s12,
+        runSpacing: AppSpacing.s12,
+        children: List.generate(
+          controller.baseCategories.length,
+          (index) => CustomTagCard(
+            onTap: (isSelect) => controller.selectReviewTag(
+              controller.baseCategories[index],
+              isSelect,
+            ),
+            isSelected: controller.reviewTags.contains(
+              controller.baseCategories[index],
+            ),
+            label: controller.baseCategories[index],
           ),
-          tag: controller.baseCategories[index],
-          color: AppColors.gray20,
         ),
       ),
     ),
diff --git a/lib/presentation/community/widgets/community_filter_tag_list.dart b/lib/presentation/community/widgets/community_filter_tag_list.dart
index 21c9a4b0..ec21b56f 100644
--- a/lib/presentation/community/widgets/community_filter_tag_list.dart
+++ b/lib/presentation/community/widgets/community_filter_tag_list.dart
@@ -19,12 +19,15 @@ class CommunityFilterTagList extends GetView<CommunityController> {
         itemCount: tags.length,
         separatorBuilder: (context, index) => AppGap.h16,
         itemBuilder: (context, index) {
-          return CustomTagCard(
-            onTap: (isSelect) => controller.filterPostTag(
-              tags[index].$2,
-              isSelect,
+          return Obx(
+            () => CustomTagCard(
+              onTap: (isSelect) => controller.filterPostTag(
+                tags[index].$2,
+                isSelect,
+              ),
+              isSelected: controller.selectTagList.contains(tags[index].$2),
+              label: tags[index].$2,
             ),
-            tag: tags[index].$2,
           );
         },
       ),
diff --git a/lib/presentation/post/controllers/post_view_controller.dart b/lib/presentation/post/controllers/post_view_controller.dart
index 56f74267..954dccfc 100644
--- a/lib/presentation/post/controllers/post_view_controller.dart
+++ b/lib/presentation/post/controllers/post_view_controller.dart
@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
+import 'package:ondo/core/constants/report_type.dart';
 import 'package:ondo/core/design_system/components/custom_alert_dialog.dart';
+import 'package:ondo/core/design_system/components/custom_report_dialog.dart';
 import 'package:ondo/domain/entities/comment/comment_entity.dart';
 import 'package:ondo/domain/entities/post/post_detail_entity.dart';
 import 'package:ondo/domain/entities/post/post_entity.dart';
@@ -21,7 +23,6 @@ import '../../../domain/usecases/post/unlike_post_usecase.dart';
 import '../../../domain/usecases/post/update_post_usecase.dart';
 import '../../community/controllers/community_post_create_screen_controller.dart';
 import '../../community/screens/community_post_create_screen.dart';
-import '../widgets/post_report_dialog.dart';
 
 class PostViewController extends GetxController {
   final int postId;
@@ -363,7 +364,7 @@ class PostViewController extends GetxController {
 
       await _deleteCommentUseCase(comment.id);
 
-      await fetchComments();
+      comments.removeWhere((c) => c.id == comment.id);
 
       commentCount.value = comments.length;
 
@@ -375,9 +376,23 @@ class PostViewController extends GetxController {
     }
   }
 
-  void reportPost() {
-    Get.dialog(
-      PostReportDialog(),
+  void reportPost(BuildContext context) {
+    showDialog(
+      context: context,
+      builder: (context) => CustomReportDialog(
+        type: ReportType.post,
+        targetId: postId.toString(),
+      ),
+    );
+  }
+
+  void reportComment(BuildContext context, CommentEntity comment) {
+    showDialog(
+      context: context,
+      builder: (context) => CustomReportDialog(
+        type: ReportType.comment,
+        targetId: comment.id.toString(),
+      ),
     );
   }
 
diff --git a/lib/presentation/post/screens/post_detail_screen.dart b/lib/presentation/post/screens/post_detail_screen.dart
index 7f68f6e3..138d022a 100644
--- a/lib/presentation/post/screens/post_detail_screen.dart
+++ b/lib/presentation/post/screens/post_detail_screen.dart
@@ -42,12 +42,13 @@ class _PostDetailScreenState extends State<PostDetailScreen> {
   }
 
   List<Widget> _top() => [
+    //TODO : controller에서 publicId를 받아오면, 분기 처리
     CustomBackButton(
       moreOptions: true,
       itemBuilder: (context) => [
         _topPopupItem("게시물 수정하기", controller.editPost),
         _topPopupItem("게시물 삭제하기", controller.deletePost),
-        _topPopupItem("게시물 신고하기", controller.reportPost),
+        _topPopupItem("게시물 신고하기", () => controller.reportPost(context)),
       ],
     ),
     PostTitle(),
diff --git a/lib/presentation/post/widgets/post_comment_card.dart b/lib/presentation/post/widgets/post_comment_card.dart
index 7b55e78d..42f03f99 100644
--- a/lib/presentation/post/widgets/post_comment_card.dart
+++ b/lib/presentation/post/widgets/post_comment_card.dart
@@ -17,31 +17,64 @@ class PostCommentCard extends GetView<PostViewController> {
 
   @override
   Widget build(BuildContext context) {
-    return Row(
-      crossAxisAlignment: CrossAxisAlignment.start,
-      children: [
-        const CustomProfileCircle(
-          radius: AppSpacing.s24,
-        ),
-        AppGap.h12,
-        Expanded(
-          child: _body(),
-        ),
-        AppGap.h6,
-        if(comment.isMy)
-        GestureDetector(
-          onTap: () {
-            controller.deleteComment(comment);
-          },
-          child: Text(
-            '삭제',
-            style: AppTextStyles.caption(
-              textColor: AppColors.red,
-            ),
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onLongPressStart: (details) =>
+          _showReportMenu(context, details.globalPosition),
+      child: Row(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          const CustomProfileCircle(
+            radius: AppSpacing.s24,
+          ),
+          AppGap.h12,
+          Expanded(
+            child: _body(),
           ),
+          AppGap.h6,
+          if (comment.isMy)
+            GestureDetector(
+              onTap: () {
+                controller.deleteComment(comment);
+              },
+              child: Text(
+                '삭제',
+                style: AppTextStyles.caption(
+                  textColor: AppColors.red,
+                ),
+              ),
+            ),
+        ],
+      ),
+    );
+  }
+
+  void _showReportMenu(BuildContext context, Offset position) {
+    if (comment.isMy) return;
+
+    showMenu<String>(
+      context: context,
+      position: RelativeRect.fromLTRB(
+        position.dx,
+        position.dy,
+        position.dx,
+        position.dy,
+      ),
+      color: AppColors.white,
+      shape: const RoundedRectangleBorder(borderRadius: AppRadius.baseRadius),
+      constraints: const BoxConstraints(minWidth: 0),
+      items: [
+        PopupMenuItem(
+          value: 'report',
+          padding: AppPadding.popupManuButton,
+          child: const Center(child: Text('신고하기')),
         ),
       ],
-    );
+    ).then((value) {
+      if (value == 'report' && context.mounted) {
+        controller.reportComment(context, comment);
+      }
+    });
   }
 
   Widget _body() {
@@ -67,4 +100,4 @@ class PostCommentCard extends GetView<PostViewController> {
       ],
     );
   }
-}
\ No newline at end of file
+}
diff --git a/lib/presentation/profile/screens/other_profile_screen.dart b/lib/presentation/profile/screens/other_profile_screen.dart
index a5dc6653..cf97e5ec 100644
--- a/lib/presentation/profile/screens/other_profile_screen.dart
+++ b/lib/presentation/profile/screens/other_profile_screen.dart
@@ -2,12 +2,14 @@ import 'dart:developer';
 
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
+import 'package:ondo/core/constants/report_type.dart';
 import 'package:ondo/core/design_system/app_colors.dart';
 import 'package:ondo/core/design_system/app_layout.dart';
 import 'package:ondo/core/design_system/app_text_styles.dart';
 import 'package:ondo/core/design_system/component_variants.dart';
 import 'package:ondo/core/design_system/components/custom_back_button.dart';
 import 'package:ondo/core/design_system/components/custom_button.dart';
+import 'package:ondo/core/design_system/components/custom_report_dialog.dart';
 import 'package:ondo/core/ui/base/base_scaffold.dart';
 import 'package:ondo/domain/entities/post/post_entity.dart';
 import 'package:ondo/presentation/post/widgets/post_item.dart';
@@ -20,7 +22,6 @@ import 'package:ondo/presentation/profile/widget/user_introduction_text.dart';
 import 'package:ondo/presentation/profile/widget/user_name_and_major.dart';
 import 'package:ondo/presentation/profile/widget/user_profile_image.dart';
 import 'package:ondo/data/models/user/response/user_profile_response_model.dart';
-import 'package:ondo/presentation/profile/widget/user_report_popup.dart';
 
 // TODO: 게시글 API 연동 후 교체
 final List<Map<String, dynamic>> mockPostData = [
@@ -95,7 +96,10 @@ class OtherProfileScreen extends GetView<OtherProfileController> {
                           PopupMenuItem(
                             onTap: () => showDialog(
                               context: context,
-                              builder: (context) => const UserReportPopup(),
+                              builder: (context) => CustomReportDialog(
+                                type: ReportType.user,
+                                targetId: publicId,
+                              ),
                             ),
                             padding: AppPadding.settingSession,
                             child: Text(
diff --git a/lib/presentation/profile/widget/report_reason_chip.dart b/lib/presentation/profile/widget/report_reason_chip.dart
deleted file mode 100644
index 50bfd27d..00000000
--- a/lib/presentation/profile/widget/report_reason_chip.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:ondo/core/design_system/app_colors.dart';
-import 'package:ondo/core/design_system/app_layout.dart';
-import 'package:ondo/core/design_system/app_text_styles.dart';
-
-class ReportReasonChip extends StatelessWidget {
-  const ReportReasonChip({
-    super.key,
-    required this.label,
-    required this.isSelected,
-    required this.onTap,
-  });
-
-  final String label;
-  final bool isSelected;
-  final VoidCallback onTap;
-
-  @override
-  Widget build(BuildContext context) {
-    return GestureDetector(
-      onTap: onTap,
-      child: Container(
-        padding: AppPadding.chip,
-        decoration: BoxDecoration(
-          color: isSelected ? AppColors.primary : AppColors.gray20,
-          borderRadius: AppRadius.baseRadius,
-        ),
-        child: Text(
-          label,
-          style: AppTextStyles.textMedium(
-            textColor: isSelected ? AppColors.white : AppColors.black,
-          ),
-        ),
-      ),
-    );
-  }
-}
diff --git a/lib/presentation/profile/widget/user_report_popup.dart b/lib/presentation/profile/widget/user_report_popup.dart
deleted file mode 100644
index a380f0ef..00000000
--- a/lib/presentation/profile/widget/user_report_popup.dart
+++ /dev/null
@@ -1,110 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:ondo/core/design_system/app_colors.dart';
-import 'package:ondo/core/design_system/app_layout.dart';
-import 'package:ondo/core/design_system/app_text_styles.dart';
-import 'package:ondo/core/design_system/component_variants.dart';
-import 'package:ondo/core/design_system/components/custom_button.dart';
-import 'package:ondo/core/design_system/components/custom_textfield.dart';
-import 'package:ondo/presentation/profile/widget/report_reason_chip.dart';
-
-class UserReportPopup extends StatefulWidget {
-  const UserReportPopup({
-    super.key,
-  });
-
-  @override
-  State<UserReportPopup> createState() => _UserReportPopupState();
-}
-
-class _UserReportPopupState extends State<UserReportPopup> {
-  final TextEditingController controller = TextEditingController();
-
-  final List<String> _reasons = [
-    "욕설이 많아요",
-    "상대를 존중하지 않아요",
-    "불쾌감을 느끼는 발언을 해요",
-    "공격적인 언어를 사용해요",
-    "신분, 장애, 인종에 대해 차별 발언을 일삼아요",
-    "부적절한 이름을 사용해요",
-    "기타",
-  ];
-
-  final Set<String> _selectedReasons = {};
-
-  bool get _isValid =>
-      _selectedReasons.isNotEmpty || controller.text.trim().isNotEmpty;
-
-  void _toggleReason(String reason) {
-    setState(() {
-      if (_selectedReasons.contains(reason)) {
-        _selectedReasons.remove(reason);
-      } else {
-        _selectedReasons.add(reason);
-      }
-    });
-  }
-
-  Future<void> _submitReport() async {
-    if (!_isValid) return;
-
-    Navigator.pop(context);
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return Dialog(
-      alignment: Alignment.center,
-      backgroundColor: AppColors.white,
-      insetPadding: AppPadding.screenHorizontal,
-      child: Container(
-        padding: AppPadding.actionPopup,
-        decoration: BoxDecoration(
-          borderRadius: AppRadius.popupRadius,
-          color: AppColors.white,
-        ),
-        child: SingleChildScrollView(
-          child: Column(
-            mainAxisSize: MainAxisSize.min,
-            crossAxisAlignment: CrossAxisAlignment.center,
-            children: [
-              Center(child: Text("유저 신고", style: AppTextStyles.titleBold20())),
-              AppGap.v16,
-              SizedBox(
-                width: double.maxFinite,
-                child: Wrap(
-                  crossAxisAlignment: WrapCrossAlignment.start,
-                  spacing: AppSpacing.s12,
-                  runSpacing: AppSpacing.s12,
-                  children: _reasons.map(
-                    (e) {
-                      return ReportReasonChip(
-                        label: e,
-                        isSelected: _selectedReasons.contains(e),
-                        onTap: () => _toggleReason(e),
-                      );
-                    },
-                  ).toList(),
-                ),
-              ),
-              AppGap.v16,
-              CustomTextField(
-                controller: controller,
-                hintText: "상세 내용을 입력해주세요",
-                onChanged: (_) => setState(() {}),
-                minLines: 4,
-                maxLines: 4,
-              ),
-              AppGap.v16,
-              CustomButton(
-                text: "신고",
-                variant: ButtonVariant.primary,
-                enabled: _isValid,
-                onPressed: () => _submitReport(),
-              ),
-            ],
-          ),
-        ),
-      ),
-    );
-  }
-}
diff --git a/lib/presentation/search/widgets/search_popup.dart b/lib/presentation/search/widgets/search_popup.dart
index 01ef182b..fd5cd12d 100644
--- a/lib/presentation/search/widgets/search_popup.dart
+++ b/lib/presentation/search/widgets/search_popup.dart
@@ -57,8 +57,7 @@ class _Tags extends GetView<SearchPopupController> {
               .map(
                 (tag) => CustomTagCard(
                   onTap: (isSelect) => controller.selectSearchTag(tag),
-                  tag: tag,
-                  color: AppColors.gray20,
+                  label: tag,
                 ),
               )
               .toList(),
diff --git a/test/presentation/chat/view_models/chat_message_view_model_test.dart b/test/presentation/chat/view_models/chat_message_view_model_test.dart
index d8409c0f..1bc73f77 100644
--- a/test/presentation/chat/view_models/chat_message_view_model_test.dart
+++ b/test/presentation/chat/view_models/chat_message_view_model_test.dart
@@ -18,7 +18,7 @@ void main() {
       expect(vm.messageId, 1);
       expect(vm.messageType, 'TEXT');
       expect(vm.content, '안녕하세요');
-      expect(vm.createdAt, DateTime.parse('2026-03-16T12:00:00'));
+      expect(vm.createdAt, DateTime.parse('2026-03-16T12:00:00Z').toLocal());
       expect(vm.isMe, false);
       expect(vm.profileImageKey, isNull);
     });