diff --git a/lib/enums/member_report_reason.dart b/lib/enums/member_report_reason.dart
new file mode 100644
index 00000000..d87aa1e4
--- /dev/null
+++ b/lib/enums/member_report_reason.dart
@@ -0,0 +1,25 @@
+/// 회원 신고 사유 enum (프론트 ↔︎ 백엔드 매핑)
+///
+/// id    : 백엔드 코드 (MemberReportReason.code)
+/// label : 클라이언트 표시용 한글 이름
+/// serverName : 백엔드 enum 이름
+///
+/// 백엔드 enum 참고 (가정):
+/// BAD_MANNERS(1), FRAUD(2), MISREPRESENTATION(3), NO_SHOW(4), ETC(5)
+///
+/// 사용 예시
+///   MemberReportReason.values.forEach((reason) => print(reason.label));
+///   final codes = selectedReasons.map((e) => e.id).toSet(); // API 전송용
+enum MemberReportReason {
+  badManners(id: 1, label: '비매너/욕설/혐오/성적 발언', serverName: 'BAD_MANNERS'),
+  fraud(id: 2, label: '사기 의심/거래 금지 물품', serverName: 'FRAUD'),
+  misrepresentation(id: 3, label: '물건 상태 불일치(허위 매물)', serverName: 'MISREPRESENTATION'),
+  noShow(id: 4, label: '노쇼(약속 불이행)', serverName: 'NO_SHOW'),
+  etc(id: 5, label: '기타(직접 입력)', serverName: 'ETC');
+
+  final int id;
+  final String label;
+  final String serverName;
+
+  const MemberReportReason({required this.id, required this.label, required this.serverName});
+}
diff --git a/lib/screens/member_report_screen.dart b/lib/screens/member_report_screen.dart
new file mode 100644
index 00000000..ee1099f5
--- /dev/null
+++ b/lib/screens/member_report_screen.dart
@@ -0,0 +1,187 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+
+import 'package:romrom_fe/models/app_colors.dart';
+import 'package:romrom_fe/models/app_theme.dart';
+import 'package:romrom_fe/widgets/common/completion_button.dart';
+import 'package:romrom_fe/enums/member_report_reason.dart';
+import 'package:romrom_fe/services/apis/report_api.dart';
+import 'package:romrom_fe/utils/error_utils.dart';
+import 'package:romrom_fe/widgets/common/common_modal.dart';
+import 'package:romrom_fe/widgets/common_app_bar.dart';
+
+/// 회원 신고하기 페이지
+class MemberReportScreen extends StatefulWidget {
+  final String memberId; // 신고 대상 회원 ID
+
+  const MemberReportScreen({super.key, required this.memberId});
+
+  @override
+  State<MemberReportScreen> createState() => _MemberReportScreenState();
+}
+
+class _MemberReportScreenState extends State<MemberReportScreen> {
+  // 선택된 신고 사유 집합
+  final Set<MemberReportReason> _selectedReasons = {};
+  late final TextEditingController _extraCommentController;
+
+  @override
+  void initState() {
+    super.initState();
+    _extraCommentController = TextEditingController();
+    _extraCommentController.addListener(() {
+      setState(() {}); // 글자 수 반영용
+    });
+  }
+
+  @override
+  void dispose() {
+    _extraCommentController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: AppColors.primaryBlack,
+      appBar: CommonAppBar(
+        title: '신고하기',
+        onBackPressed: () {
+          Navigator.of(context).pop();
+        },
+        showBottomBorder: true,
+      ),
+      body: Stack(
+        children: [
+          Padding(
+            padding: EdgeInsets.symmetric(horizontal: 24.w),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                SizedBox(height: 40.h),
+                Text('신고 사유', style: CustomTextStyles.h2.copyWith(fontWeight: FontWeight.w600)),
+                SizedBox(height: 24.h),
+                // 신고 사유 리스트
+                ...MemberReportReason.values.map((reason) => _buildReasonRow(reason)),
+                if (_selectedReasons.contains(MemberReportReason.etc)) ...[
+                  Container(
+                    width: 345.w,
+                    height: 140.h,
+                    padding: EdgeInsets.all(16.w),
+                    decoration: BoxDecoration(
+                      color: AppColors.secondaryBlack1,
+                      borderRadius: BorderRadius.circular(8.r),
+                      border: Border.all(color: AppColors.textColorWhite.withValues(alpha: 0.3), width: 1.5.w),
+                    ),
+                    child: TextField(
+                      controller: _extraCommentController,
+                      maxLines: null,
+                      maxLength: 300,
+                      style: CustomTextStyles.p2,
+                      cursorColor: AppColors.textColorWhite,
+                      decoration: InputDecoration(
+                        isCollapsed: true,
+                        border: InputBorder.none,
+                        counterText: '', // 기본 counter 숨김
+                        hintText: '신고 사유를 상세하게 적어주세요',
+                        hintStyle: CustomTextStyles.p2.copyWith(color: AppColors.textColorWhite.withValues(alpha: 0.4)),
+                      ),
+                    ),
+                  ),
+                  SizedBox(height: 8.h),
+                  Align(
+                    alignment: Alignment.centerRight,
+                    child: Text(
+                      '${_extraCommentController.text.length}/300',
+                      style: CustomTextStyles.p3.copyWith(
+                        fontWeight: FontWeight.w600,
+                        color: AppColors.textColorWhite.withValues(alpha: 0.5),
+                      ),
+                    ),
+                  ),
+                ],
+              ],
+            ),
+          ),
+
+          // 하단 고정 신고하기 버튼 (bottom 기준 97.h)
+          Positioned(
+            left: 24.w,
+            right: 24.w,
+            bottom: 97.h,
+            child: CompletionButton(
+              isEnabled: _selectedReasons.isNotEmpty,
+              buttonText: '신고 하기',
+              enabledOnPressed: () async {
+                try {
+                  final api = ReportApi();
+                  await api.reportMember(
+                    memberId: widget.memberId,
+                    memberReportReasons: _selectedReasons.map((e) => e.id).toSet(),
+                    extraComment: _extraCommentController.text.trim(),
+                  );
+                } catch (e) {
+                  debugPrint('회원 신고 요청 중 오류: $e');
+                  // 에러 코드 파싱
+                  final messageForUser = ErrorUtils.getErrorMessage(e);
+
+                  await CommonModal.error(
+                    context: context,
+                    message: messageForUser,
+                    onConfirm: () => Navigator.of(context).pop(),
+                  );
+                  return;
+                }
+
+                if (!mounted) return;
+
+                Navigator.of(context).pop(true); // 성공 결과 반환
+              },
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  /// 신고 사유 선택/해제 토글
+  void _toggleReason(MemberReportReason reason) {
+    setState(() {
+      if (_selectedReasons.contains(reason)) {
+        _selectedReasons.remove(reason);
+      } else {
+        _selectedReasons.add(reason);
+      }
+    });
+  }
+
+  /// 신고 사유 행
+  Widget _buildReasonRow(MemberReportReason reason) {
+    return Padding(
+      padding: EdgeInsets.only(bottom: 24.h),
+      child: GestureDetector(
+        behavior: HitTestBehavior.opaque,
+        onTap: () => _toggleReason(reason),
+        child: Row(
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: [
+            SizedBox(
+              width: 20.w,
+              height: 20.w,
+              child: Checkbox(
+                value: _selectedReasons.contains(reason),
+                onChanged: (_) => _toggleReason(reason),
+                activeColor: AppColors.primaryYellow,
+                checkColor: AppColors.primaryBlack,
+                shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(4.r)),
+                side: BorderSide(color: AppColors.primaryYellow, width: 1.w),
+              ),
+            ),
+            SizedBox(width: 12.w),
+            Expanded(child: Text(reason.label, style: CustomTextStyles.h3)),
+          ],
+        ),
+      ),
+    );
+  }
+}
diff --git a/lib/screens/profile/profile_screen.dart b/lib/screens/profile/profile_screen.dart
index 4ceb6a63..aa30b8bb 100644
--- a/lib/screens/profile/profile_screen.dart
+++ b/lib/screens/profile/profile_screen.dart
@@ -5,9 +5,11 @@ import 'package:romrom_fe/icons/app_icons.dart';
 import 'package:romrom_fe/models/app_colors.dart';
 import 'package:romrom_fe/models/app_theme.dart';
 import 'package:romrom_fe/models/user_info.dart';
+import 'package:romrom_fe/screens/member_report_screen.dart';
 import 'package:romrom_fe/screens/my_page/my_profile_edit_screen.dart';
 import 'package:romrom_fe/services/apis/member_api.dart';
 import 'package:romrom_fe/utils/common_utils.dart';
+import 'package:romrom_fe/widgets/common/common_modal.dart';
 import 'package:romrom_fe/widgets/common/common_snack_bar.dart';
 import 'package:romrom_fe/widgets/common/romrom_context_menu.dart';
 import 'package:romrom_fe/widgets/common_app_bar.dart';
@@ -156,9 +158,16 @@ class _ProfileScreenState extends State<ProfileScreen> {
   }
 
   /// 신고하기 처리
-  void _handleReport() {
-    // TODO: 신고 기능 구현 (API 확인 필요)
-    CommonSnackBar.show(context: context, message: '신고 기능은 준비 중입니다', type: SnackBarType.info);
+  Future<void> _handleReport() async {
+    final bool? reported = await context.navigateTo(screen: MemberReportScreen(memberId: widget.memberId));
+
+    if (reported == true && mounted) {
+      await CommonModal.success(
+        context: context,
+        message: '신고가 접수되었습니다.',
+        onConfirm: () => Navigator.of(context).pop(),
+      );
+    }
   }
 
   @override
diff --git a/lib/services/apis/report_api.dart b/lib/services/apis/report_api.dart
index c676e0f3..077d4a13 100644
--- a/lib/services/apis/report_api.dart
+++ b/lib/services/apis/report_api.dart
@@ -31,4 +31,29 @@ class ReportApi {
       },
     );
   }
+
+  /// 회원 신고 API
+  /// POST /api/report/member/post
+  Future<void> reportMember({
+    required String memberId,
+    required Set<int> memberReportReasons,
+    String? extraComment,
+  }) async {
+    const String url = '${AppUrls.baseUrl}/api/report/member/post';
+
+    final Map<String, dynamic> fields = {
+      'memberId': memberId,
+      'memberReportReasons': memberReportReasons.join(','),
+      if (extraComment != null && extraComment.isNotEmpty) 'extraComment': extraComment,
+    };
+
+    await ApiClient.sendMultipartRequest(
+      url: url,
+      fields: fields,
+      isAuthRequired: true,
+      onSuccess: (_) {
+        debugPrint('회원 신고 성공');
+      },
+    );
+  }
 }