diff --git a/lib/core/router/bindings/community_binding.dart b/lib/core/router/bindings/community_binding.dart
index b984b24a..a0997900 100644
--- a/lib/core/router/bindings/community_binding.dart
+++ b/lib/core/router/bindings/community_binding.dart
@@ -6,6 +6,10 @@ import 'package:ondo/domain/usecases/post/load_recommend_post_list_use_case.dart
 import 'package:ondo/domain/usecases/post/post_search_use_case.dart';
 import 'package:ondo/domain/usecases/post/save_post_like_local_use_case.dart';
 import 'package:ondo/domain/usecases/post/unlike_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/unbookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmarked_post_use_case.dart';
+import 'package:ondo/domain/usecases/post/save_post_bookmark_local_use_case.dart';
 import 'package:ondo/presentation/community/controllers/community_controller.dart';
 import 'package:ondo/presentation/search/states/search_page_state.dart';
 
@@ -21,6 +25,10 @@ class CommunityBinding extends Bindings {
         getRecommendPostsUseCase: Get.find<LoadRecommendPostListUseCase>(),
         savePostLikeLocalUseCase: Get.find<SavePostLikeLocalUseCase>(),
         likedPostUseCase: Get.find<LikedPostUseCase>(),
+        bookmarkUseCase: Get.find<BookmarkPostUseCase>(),
+        unbookmarkUseCase: Get.find<UnbookmarkPostUseCase>(),
+        savePostBookmarkLocalUseCase: Get.find<SavePostBookmarkLocalUseCase>(),
+        bookmarkedPostUseCase: Get.find<BookmarkedPostUseCase>(),
         postSearchUseCase: Get.find<PostSearchUseCase>(),
       ),
     );
diff --git a/lib/core/router/bindings/home_binding.dart b/lib/core/router/bindings/home_binding.dart
index cd8a46d8..ab836da7 100644
--- a/lib/core/router/bindings/home_binding.dart
+++ b/lib/core/router/bindings/home_binding.dart
@@ -8,6 +8,10 @@ import 'package:ondo/domain/usecases/post/liked_post_use_case.dart';
 import 'package:ondo/domain/usecases/post/post_search_use_case.dart';
 import 'package:ondo/domain/usecases/post/save_post_like_local_use_case.dart';
 import 'package:ondo/domain/usecases/post/unlike_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/unbookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmarked_post_use_case.dart';
+import 'package:ondo/domain/usecases/post/save_post_bookmark_local_use_case.dart';
 import 'package:ondo/domain/usecases/user/user_search_use_case.dart';
 import 'package:ondo/presentation/home/controllers/home_controller.dart';
 import 'package:ondo/presentation/search/states/search_page_state.dart';
@@ -29,6 +33,10 @@ class HomeBinding extends Bindings {
         unlikePostUseCase: Get.find<UnlikePostUseCase>(),
         savePostLikeLocalUseCase: Get.find<SavePostLikeLocalUseCase>(),
         likedPostUseCase: Get.find<LikedPostUseCase>(),
+        bookmarkPostUseCase: Get.find<BookmarkPostUseCase>(),
+        unbookmarkPostUseCase: Get.find<UnbookmarkPostUseCase>(),
+        savePostBookmarkLocalUseCase: Get.find<SavePostBookmarkLocalUseCase>(),
+        bookmarkedPostUseCase: Get.find<BookmarkedPostUseCase>(),
       ),
     );
   }
diff --git a/lib/core/router/bindings/post_binding.dart b/lib/core/router/bindings/post_binding.dart
index 2a7c89e1..1b772910 100644
--- a/lib/core/router/bindings/post_binding.dart
+++ b/lib/core/router/bindings/post_binding.dart
@@ -4,6 +4,7 @@ import 'package:ondo/data/datasource/post/post_remote_datasource.dart';
 import 'package:ondo/data/network/clients/auth_client.dart';
 import 'package:ondo/data/repositories/post/post_repository_impl.dart';
 import 'package:ondo/domain/usecases/post/bookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmarked_post_use_case.dart';
 import 'package:ondo/domain/usecases/post/create_post_usecase.dart';
 import 'package:ondo/domain/usecases/post/like_post_usecase.dart';
 import 'package:ondo/domain/usecases/post/update_post_usecase.dart';
@@ -11,6 +12,7 @@ import 'package:ondo/domain/usecases/post/liked_post_use_case.dart'; // ← 추
 import 'package:ondo/domain/usecases/post/load_recent_popular_post_list_use_case.dart';
 import 'package:ondo/domain/usecases/post/load_recommend_post_list_use_case.dart';
 import 'package:ondo/domain/usecases/post/post_search_use_case.dart';
+import 'package:ondo/domain/usecases/post/save_post_bookmark_local_use_case.dart';
 import 'package:ondo/domain/usecases/post/save_post_like_local_use_case.dart';
 import 'package:ondo/domain/usecases/post/unbookmark_post_usecase.dart';
 import 'package:ondo/domain/usecases/post/unlike_post_usecase.dart';
@@ -62,6 +64,14 @@ class PostBinding extends Bindings {
           () => UnbookmarkPostUseCase(Get.find<PostRepositoryImpl>()),
     );
 
+    Get.lazyPut<BookmarkedPostUseCase>( // ← 로컬 캐시 확인(북마크)
+          () => BookmarkedPostUseCase(Get.find<PostRepositoryImpl>()),
+    );
+
+    Get.lazyPut<SavePostBookmarkLocalUseCase>(
+          () => SavePostBookmarkLocalUseCase(Get.find<PostRepositoryImpl>()),
+    );
+
     Get.lazyPut<PostSearchUseCase>(
           () => PostSearchUseCase(Get.find<PostRepositoryImpl>()),
     );
diff --git a/lib/core/router/bindings/post_view_binding.dart b/lib/core/router/bindings/post_view_binding.dart
index b2333bda..3651f8c5 100644
--- a/lib/core/router/bindings/post_view_binding.dart
+++ b/lib/core/router/bindings/post_view_binding.dart
@@ -2,7 +2,9 @@ import 'package:get/get.dart';
 import 'package:ondo/domain/usecases/comment/create_comment_usecase.dart';
 import 'package:ondo/domain/usecases/comment/delete_comment_usecase.dart';
 import 'package:ondo/domain/usecases/comment/get_comments_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmarked_post_use_case.dart';
 import 'package:ondo/domain/usecases/post/liked_post_use_case.dart';
+import 'package:ondo/domain/usecases/post/save_post_bookmark_local_use_case.dart';
 import 'package:ondo/domain/usecases/post/save_post_like_local_use_case.dart';
 
 import '../../../data/datasource/comment/comment_remote_datasource.dart';
@@ -40,6 +42,10 @@ class PostViewBinding extends Bindings {
           () => SavePostLikeLocalUseCase(Get.find<PostRepositoryImpl>()),
     );
 
+    Get.lazyPut<SavePostBookmarkLocalUseCase>(
+          () => SavePostBookmarkLocalUseCase(Get.find<PostRepositoryImpl>()),
+    );
+
     // Comment DataSource
     Get.lazyPut<CommentRemoteDataSource>(
           () => CommentRemoteDataSourceImpl(Get.find<AuthClient>()),
@@ -81,6 +87,8 @@ class PostViewBinding extends Bindings {
         deleteCommentUseCase: Get.find<DeleteCommentUseCase>(),
         likedPostUseCase: Get.find<LikedPostUseCase>(),
         savePostLikeLocalUseCase: Get.find<SavePostLikeLocalUseCase>(),
+        bookmarkedPostUseCase: Get.find<BookmarkedPostUseCase>(),
+        savePostBookmarkLocalUseCase: Get.find<SavePostBookmarkLocalUseCase>(),
       ),
     );
   }
diff --git a/lib/data/datasource/post/post_local_datasource.dart b/lib/data/datasource/post/post_local_datasource.dart
index ae25a130..16189fac 100644
--- a/lib/data/datasource/post/post_local_datasource.dart
+++ b/lib/data/datasource/post/post_local_datasource.dart
@@ -2,9 +2,11 @@ import 'package:shared_preferences/shared_preferences.dart';
 
 class PostLocalDatasource {
   static const String _likedPostsKey = 'liked_post_ids';
+  static const String _bookmarkedPostsKey = 'bookmarked_post_ids';
 
   SharedPreferences? _prefs;
   Set<int>? _cachedLikedIds;
+  Set<int>? _cachedBookmarkedIds;
 
   Future<SharedPreferences> _getPrefs() async {
     return _prefs ??= await SharedPreferences.getInstance();
@@ -42,4 +44,37 @@ class PostLocalDatasource {
     final ids = await getLikedPostIds();
     return ids.contains(postId);
   }
+
+  Future<void> saveBookmarkState(int postId, bool isBookmarked) async {
+    final prefs = await _getPrefs();
+    final bookmarkedIds = await getBookmarkedPostIds();
+
+    if (isBookmarked) {
+      bookmarkedIds.add(postId);
+    } else {
+      bookmarkedIds.remove(postId);
+    }
+
+    _cachedBookmarkedIds = bookmarkedIds;
+
+    await prefs.setStringList(
+      _bookmarkedPostsKey,
+      bookmarkedIds.map((id) => id.toString()).toList(),
+    );
+  }
+
+  Future<Set<int>> getBookmarkedPostIds() async {
+    if (_cachedBookmarkedIds != null) return _cachedBookmarkedIds!;
+
+    final prefs = await _getPrefs();
+    final ids = prefs.getStringList(_bookmarkedPostsKey);
+    _cachedBookmarkedIds =
+        (ids ?? []).map((id) => int.tryParse(id)).whereType<int>().toSet();
+    return _cachedBookmarkedIds!;
+  }
+
+  Future<bool> bookmarkedPost(int postId) async {
+    final ids = await getBookmarkedPostIds();
+    return ids.contains(postId);
+  }
 }
\ No newline at end of file
diff --git a/lib/data/repositories/post/post_repository_impl.dart b/lib/data/repositories/post/post_repository_impl.dart
index 0f6fce95..ae8c6b8e 100644
--- a/lib/data/repositories/post/post_repository_impl.dart
+++ b/lib/data/repositories/post/post_repository_impl.dart
@@ -103,6 +103,16 @@ class PostRepositoryImpl implements PostRepository {
     return _localDatasource.likedPost(postId);
   }
 
+  @override
+  Future<void> saveBookmarkState(int postId, bool isBookmarked) {
+    return _localDatasource.saveBookmarkState(postId, isBookmarked);
+  }
+
+  @override
+  Future<bool> bookmarkedPost(int postId) {
+    return _localDatasource.bookmarkedPost(postId);
+  }
+
   @override
   Future<ListableWrapper<PostEntity>> search(
       String keyword,
diff --git a/lib/domain/entities/post/bookmark_changed_event.dart b/lib/domain/entities/post/bookmark_changed_event.dart
new file mode 100644
index 00000000..348848fd
--- /dev/null
+++ b/lib/domain/entities/post/bookmark_changed_event.dart
@@ -0,0 +1,11 @@
+class BookmarkChangedEvent {
+  final int postId;
+  final bool isBookmarked;
+  final int bookmarkCount;
+
+  BookmarkChangedEvent({
+    required this.postId,
+    required this.isBookmarked,
+    required this.bookmarkCount,
+  });
+}
diff --git a/lib/domain/repositories/post/post_repository.dart b/lib/domain/repositories/post/post_repository.dart
index 45c9d176..7f6d7b3c 100644
--- a/lib/domain/repositories/post/post_repository.dart
+++ b/lib/domain/repositories/post/post_repository.dart
@@ -33,6 +33,10 @@ abstract class PostRepository {
 
   Future<bool> likedPost(int postId);
 
+  Future<void> saveBookmarkState(int postId, bool isBookmarked);
+
+  Future<bool> bookmarkedPost(int postId);
+
   Future<ListableWrapper<PostEntity>> search(
       String keyword,
       List<String>? tags,
diff --git a/lib/domain/usecases/post/bookmarked_post_use_case.dart b/lib/domain/usecases/post/bookmarked_post_use_case.dart
new file mode 100644
index 00000000..4bfe578c
--- /dev/null
+++ b/lib/domain/usecases/post/bookmarked_post_use_case.dart
@@ -0,0 +1,11 @@
+import 'package:ondo/domain/repositories/post/post_repository.dart';
+
+class BookmarkedPostUseCase {
+  final PostRepository _repository;
+
+  BookmarkedPostUseCase(this._repository);
+
+  Future<bool> call(int postId) {
+    return _repository.bookmarkedPost(postId);
+  }
+}
diff --git a/lib/domain/usecases/post/save_post_bookmark_local_use_case.dart b/lib/domain/usecases/post/save_post_bookmark_local_use_case.dart
new file mode 100644
index 00000000..83bf9f1f
--- /dev/null
+++ b/lib/domain/usecases/post/save_post_bookmark_local_use_case.dart
@@ -0,0 +1,11 @@
+import 'package:ondo/domain/repositories/post/post_repository.dart';
+
+class SavePostBookmarkLocalUseCase {
+  final PostRepository _repository;
+
+  SavePostBookmarkLocalUseCase(this._repository);
+
+  Future<void> call(int postId, bool isBookmarked) {
+    return _repository.saveBookmarkState(postId, isBookmarked);
+  }
+}
diff --git a/lib/presentation/community/controllers/community_controller.dart b/lib/presentation/community/controllers/community_controller.dart
index 9e20180d..cc265a21 100644
--- a/lib/presentation/community/controllers/community_controller.dart
+++ b/lib/presentation/community/controllers/community_controller.dart
@@ -9,6 +9,10 @@ import 'package:ondo/domain/usecases/post/post_search_use_case.dart';
 import 'package:ondo/domain/usecases/post/save_post_like_local_use_case.dart';
 import 'package:ondo/domain/usecases/post/unlike_post_usecase.dart';
 import 'package:ondo/domain/usecases/post/update_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/unbookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmarked_post_use_case.dart';
+import 'package:ondo/domain/usecases/post/save_post_bookmark_local_use_case.dart';
 import 'package:ondo/presentation/community/controllers/community_post_create_screen_controller.dart';
 import 'package:ondo/presentation/community/screens/community_post_create_screen.dart';
 import 'package:ondo/presentation/post/controllers/post_controller.dart';
@@ -19,6 +23,10 @@ class CommunityController extends GetxController {
   final LoadRecommendPostListUseCase _getRecommendPostsUseCase;
   final SavePostLikeLocalUseCase _savePostLikeLocalUseCase;
   final LikedPostUseCase _likedPostUseCase;
+  final BookmarkPostUseCase _bookmarkUseCase;
+  final UnbookmarkPostUseCase _unbookmarkUseCase;
+  final SavePostBookmarkLocalUseCase _savePostBookmarkLocalUseCase;
+  final BookmarkedPostUseCase _bookmarkedPostUseCase;
   final PostSearchUseCase _postSearchUseCase;
 
   CommunityController({
@@ -27,12 +35,20 @@ class CommunityController extends GetxController {
     required LoadRecommendPostListUseCase getRecommendPostsUseCase,
     required SavePostLikeLocalUseCase savePostLikeLocalUseCase,
     required LikedPostUseCase likedPostUseCase,
+    required BookmarkPostUseCase bookmarkUseCase,
+    required UnbookmarkPostUseCase unbookmarkUseCase,
+    required SavePostBookmarkLocalUseCase savePostBookmarkLocalUseCase,
+    required BookmarkedPostUseCase bookmarkedPostUseCase,
     required PostSearchUseCase postSearchUseCase,
   })  : _likeUseCase = likeUseCase,
         _unlikeUseCase = unlikeUseCase,
         _getRecommendPostsUseCase = getRecommendPostsUseCase,
         _savePostLikeLocalUseCase = savePostLikeLocalUseCase,
         _likedPostUseCase = likedPostUseCase,
+        _bookmarkUseCase = bookmarkUseCase,
+        _unbookmarkUseCase = unbookmarkUseCase,
+        _savePostBookmarkLocalUseCase = savePostBookmarkLocalUseCase,
+        _bookmarkedPostUseCase = bookmarkedPostUseCase,
         _postSearchUseCase = postSearchUseCase;
 
   final RxSet<String> viewTagList = <String>{}.obs;
@@ -60,6 +76,15 @@ class CommunityController extends GetxController {
         _syncLike(event.postId, event.isLiked, event.likeCount);
       },
     );
+
+    ever(
+      Get.find<PostController>().lastBookmarkEvent,
+      (event) {
+        if (event == null) return;
+        _syncBookmark(event.postId, event.isBookmarked, event.bookmarkCount);
+      },
+    );
+
     ever(
       Get.find<PostController>().lastDeleteEvent,
       (postId) {
@@ -93,6 +118,25 @@ class CommunityController extends GetxController {
     }
   }
 
+  void _syncBookmark(int postId, bool isBookmarked, int bookmarkCount) {
+    final index = viewPostList.indexWhere((p) => p.postId == postId);
+    if (index != -1) {
+      viewPostList[index] = viewPostList[index].copyWith(
+        bookmarkCount: bookmarkCount,
+        isBookmark: isBookmarked,
+      );
+      viewPostList.refresh();
+    }
+
+    final cacheIndex = _cachePostList.indexWhere((p) => p.postId == postId);
+    if (cacheIndex != -1) {
+      _cachePostList[cacheIndex] = _cachePostList[cacheIndex].copyWith(
+        bookmarkCount: bookmarkCount,
+        isBookmark: isBookmarked,
+      );
+    }
+  }
+
   @override
   void onReady() {
     Get.put(CommunityResultController());
@@ -122,6 +166,7 @@ class CommunityController extends GetxController {
         result.content.map((post) async {
           return post.copyWith(
             isFavorite: await _likedPostUseCase(post.postId),
+            isBookmark: await _bookmarkedPostUseCase(post.postId),
           );
         }),
       );
@@ -192,6 +237,41 @@ class CommunityController extends GetxController {
     }
   }
 
+  Future<void> toggleBookmark(int postId, bool isBookmarked) async {
+    _updatePostBookmarkInList(postId, isBookmarked ? 1 : -1, isBookmarked);
+
+    try {
+      if (isBookmarked) {
+        await _bookmarkUseCase(postId);
+      } else {
+        await _unbookmarkUseCase(postId);
+      }
+      await _savePostBookmarkLocalUseCase(postId, isBookmarked);
+    } catch (e) {
+      debugPrint('[CommunityController] 북마크 토글 실패 - error: $e');
+      _updatePostBookmarkInList(postId, isBookmarked ? -1 : 1, !isBookmarked);
+    }
+  }
+
+  void _updatePostBookmarkInList(int postId, int delta, bool isBookmark) {
+    final index = viewPostList.indexWhere((p) => p.postId == postId);
+    if (index != -1) {
+      viewPostList[index] = viewPostList[index].copyWith(
+        bookmarkCount: viewPostList[index].bookmarkCount + delta,
+        isBookmark: isBookmark,
+      );
+      viewPostList.refresh();
+    }
+
+    final cacheIndex = _cachePostList.indexWhere((p) => p.postId == postId);
+    if (cacheIndex != -1) {
+      _cachePostList[cacheIndex] = _cachePostList[cacheIndex].copyWith(
+        bookmarkCount: _cachePostList[cacheIndex].bookmarkCount + delta,
+        isBookmark: isBookmark,
+      );
+    }
+  }
+
   void removePost(int postId) {
     viewPostList.removeWhere((p) => p.postId == postId);
     _cachePostList.removeWhere((p) => p.postId == postId);
diff --git a/lib/presentation/community/widgets/community_post_list.dart b/lib/presentation/community/widgets/community_post_list.dart
index 273d62bf..2fc0e49b 100644
--- a/lib/presentation/community/widgets/community_post_list.dart
+++ b/lib/presentation/community/widgets/community_post_list.dart
@@ -37,6 +37,9 @@ class CommunityPostList extends GetView<CommunityController> {
               heartAction: (isLiked, total) {
                 controller.toggleLike(post.postId, isLiked);
               },
+              bookmarkAction: (isBookmark, total) {
+                controller.toggleBookmark(post.postId, isBookmark);
+              },
             );
           },
         ),
diff --git a/lib/presentation/home/controllers/home_controller.dart b/lib/presentation/home/controllers/home_controller.dart
index cc38f415..9015e646 100644
--- a/lib/presentation/home/controllers/home_controller.dart
+++ b/lib/presentation/home/controllers/home_controller.dart
@@ -11,6 +11,10 @@ import 'package:ondo/domain/usecases/post/load_recent_popular_post_list_use_case
 import 'package:ondo/domain/usecases/post/save_post_like_local_use_case.dart';
 import 'package:ondo/domain/usecases/post/post_search_use_case.dart';
 import 'package:ondo/domain/usecases/post/unlike_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/unbookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmarked_post_use_case.dart';
+import 'package:ondo/domain/usecases/post/save_post_bookmark_local_use_case.dart';
 import 'package:ondo/domain/usecases/user/user_search_use_case.dart';
 import 'package:ondo/presentation/home/controllers/base_home_controller.dart';
 import 'package:ondo/presentation/post/controllers/post_controller.dart';
@@ -28,6 +32,10 @@ class HomeController extends GetxController with BaseHomeController {
   final UnlikePostUseCase unlikePostUseCase;
   final SavePostLikeLocalUseCase savePostLikeLocalUseCase;
   final LikedPostUseCase likedPostUseCase;
+  final BookmarkPostUseCase bookmarkPostUseCase;
+  final UnbookmarkPostUseCase unbookmarkPostUseCase;
+  final SavePostBookmarkLocalUseCase savePostBookmarkLocalUseCase;
+  final BookmarkedPostUseCase bookmarkedPostUseCase;
   final LoadRecentPopularPostListUseCase loadRecentPopularPostListUseCase;
 
   final searchResultController = HomeSearchResultController();
@@ -40,6 +48,10 @@ class HomeController extends GetxController with BaseHomeController {
     required this.unlikePostUseCase,
     required this.savePostLikeLocalUseCase,
     required this.likedPostUseCase,
+    required this.bookmarkPostUseCase,
+    required this.unbookmarkPostUseCase,
+    required this.savePostBookmarkLocalUseCase,
+    required this.bookmarkedPostUseCase,
     required this.postSearchUseCase,
     required this.loadRecentPopularPostListUseCase,
   });
@@ -72,6 +84,15 @@ class HomeController extends GetxController with BaseHomeController {
         _syncLike(event.postId, event.isLiked, event.likeCount);
       },
     );
+
+    ever(
+      Get.find<PostController>().lastBookmarkEvent,
+      (event) {
+        if (event == null) return;
+        _syncBookmark(event.postId, event.isBookmarked, event.bookmarkCount);
+      },
+    );
+
     ever(
       Get.find<PostController>().lastDeleteEvent,
       (postId) {
@@ -108,6 +129,17 @@ class HomeController extends GetxController with BaseHomeController {
     _updateRankPostLikeInList(postId, isLiked, likeCount: likeCount);
   }
 
+  void _syncBookmark(int postId, bool isBookmarked, int bookmarkCount) {
+    final cacheIndex = _cachePostList.indexWhere((p) => p.postId == postId);
+    if (cacheIndex != -1) {
+      _cachePostList[cacheIndex] = _cachePostList[cacheIndex].copyWith(
+        bookmarkCount: bookmarkCount,
+        isBookmark: isBookmarked,
+      );
+      viewPostList.assignAll(_cachePostList);
+    }
+  }
+
   Future<void> _loadRecentPopularPostList() async {
     isLoadingRanks.value = true;
     rankErrorMessage.value = '';
@@ -152,6 +184,7 @@ class HomeController extends GetxController with BaseHomeController {
         result.content.map((post) async {
           return post.copyWith(
             isFavorite: await likedPostUseCase(post.postId),
+            isBookmark: await bookmarkedPostUseCase(post.postId),
           );
         }),
       );
@@ -220,6 +253,34 @@ class HomeController extends GetxController with BaseHomeController {
     viewPostList.assignAll(_cachePostList);
   }
 
+  Future<void> toggleBookmark(int postId, bool isBookmarked) async {
+    _updatePostBookmarkInList(postId, isBookmarked);
+
+    try {
+      if (isBookmarked) {
+        await bookmarkPostUseCase(postId);
+      } else {
+        await unbookmarkPostUseCase(postId);
+      }
+      await savePostBookmarkLocalUseCase(postId, isBookmarked);
+    } catch (e) {
+      debugPrint('[HomeController] 북마크 토글 실패 - error: $e');
+      _updatePostBookmarkInList(postId, !isBookmarked);
+    }
+  }
+
+  void _updatePostBookmarkInList(int postId, bool isBookmark) {
+    final cacheIndex = _cachePostList.indexWhere((p) => p.postId == postId);
+    if (cacheIndex != -1) {
+      _cachePostList[cacheIndex] = _cachePostList[cacheIndex].copyWith(
+        bookmarkCount:
+            _cachePostList[cacheIndex].bookmarkCount + (isBookmark ? 1 : -1),
+        isBookmark: isBookmark,
+      );
+    }
+    viewPostList.assignAll(_cachePostList);
+  }
+
   void _updateRankPostLikeInList(int postId, bool isFavorite, {int? likeCount}) {
     final index = recentPopularPostList.indexWhere((p) => p.postId == postId);
     if (index == -1) return;
diff --git a/lib/presentation/home/screens/home_screen.dart b/lib/presentation/home/screens/home_screen.dart
index 16a93530..f209d332 100644
--- a/lib/presentation/home/screens/home_screen.dart
+++ b/lib/presentation/home/screens/home_screen.dart
@@ -79,7 +79,9 @@ class HomeScreen extends GetView<HomeController> {
                     heartAction: (isFavorite, total) {
                       controller.toggleLike(post.postId, isFavorite);
                     },
-                    bookmarkAction: (isBookmark, total) {},
+                    bookmarkAction: (isBookmark, total) {
+                      controller.toggleBookmark(post.postId, isBookmark);
+                    },
                   ),
                 )
                 .toList(),
diff --git a/lib/presentation/post/controllers/post_controller.dart b/lib/presentation/post/controllers/post_controller.dart
index 15db8e9d..2735c090 100644
--- a/lib/presentation/post/controllers/post_controller.dart
+++ b/lib/presentation/post/controllers/post_controller.dart
@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:go_router/go_router.dart';
+import 'package:ondo/domain/entities/post/bookmark_changed_event.dart';
 import 'package:ondo/domain/entities/post/like_changed_event.dart';
 import 'package:ondo/domain/entities/post/post_updated_event.dart';
 
@@ -8,6 +9,10 @@ class PostController extends GetxController {
   /// 상세 화면에서 변경된 좋아요 상태를 게시물 목록 화면들에 전파
   final Rx<LikeChangedEvent?> lastLikeEvent = Rx<LikeChangedEvent?>(null);
 
+  /// 좋아요와 동일하게, 상세 화면에서 변경된 북마크 상태를 목록 화면들에 전파한다.
+  final Rx<BookmarkChangedEvent?> lastBookmarkEvent =
+      Rx<BookmarkChangedEvent?>(null);
+
   /// 게시물 삭제 이벤트 — postId
   final Rx<int?> lastDeleteEvent = Rx<int?>(null);
 
@@ -22,6 +27,14 @@ class PostController extends GetxController {
     );
   }
 
+  void updateBookmarkState(int postId, bool isBookmarked, int bookmarkCount) {
+    lastBookmarkEvent.value = BookmarkChangedEvent(
+      postId: postId,
+      isBookmarked: isBookmarked,
+      bookmarkCount: bookmarkCount,
+    );
+  }
+
   void notifyPostDeleted(int postId) {
     lastDeleteEvent.value = postId;
   }
diff --git a/lib/presentation/post/controllers/post_view_controller.dart b/lib/presentation/post/controllers/post_view_controller.dart
index cab1e199..d55eea2f 100644
--- a/lib/presentation/post/controllers/post_view_controller.dart
+++ b/lib/presentation/post/controllers/post_view_controller.dart
@@ -11,7 +11,9 @@ import 'package:ondo/domain/usecases/comment/create_comment_usecase.dart';
 import 'package:ondo/domain/usecases/comment/delete_comment_usecase.dart';
 import 'package:ondo/domain/usecases/comment/get_comments_usecase.dart';
 import 'package:ondo/domain/usecases/post/bookmark_post_usecase.dart';
+import 'package:ondo/domain/usecases/post/bookmarked_post_use_case.dart';
 import 'package:ondo/domain/usecases/post/liked_post_use_case.dart';
+import 'package:ondo/domain/usecases/post/save_post_bookmark_local_use_case.dart';
 import 'package:ondo/domain/usecases/post/save_post_like_local_use_case.dart';
 import 'package:ondo/domain/usecases/post/unbookmark_post_usecase.dart';
 import 'package:ondo/presentation/post/controllers/post_controller.dart';
@@ -42,6 +44,8 @@ class PostViewController extends GetxController {
   final DeleteCommentUseCase _deleteCommentUseCase;
   final LikedPostUseCase _likedPostUseCase;
   final SavePostLikeLocalUseCase _savePostLikeLocalUseCase;
+  final BookmarkedPostUseCase _bookmarkedPostUseCase;
+  final SavePostBookmarkLocalUseCase _savePostBookmarkLocalUseCase;
 
   PostViewController({
     required this.postId,
@@ -58,6 +62,8 @@ class PostViewController extends GetxController {
     required DeleteCommentUseCase deleteCommentUseCase,
     required LikedPostUseCase likedPostUseCase,
     required SavePostLikeLocalUseCase savePostLikeLocalUseCase,
+    required BookmarkedPostUseCase bookmarkedPostUseCase,
+    required SavePostBookmarkLocalUseCase savePostBookmarkLocalUseCase,
   })  : _getPostDetailUseCase = getPostDetailUseCase,
         _updatePostUseCase = updatePostUseCase,
         _deletePostUseCase = deletePostUseCase,
@@ -69,7 +75,9 @@ class PostViewController extends GetxController {
         _createCommentUseCase = createCommentUseCase,
         _deleteCommentUseCase = deleteCommentUseCase,
         _likedPostUseCase = likedPostUseCase,
-        _savePostLikeLocalUseCase = savePostLikeLocalUseCase;
+        _savePostLikeLocalUseCase = savePostLikeLocalUseCase,
+        _bookmarkedPostUseCase = bookmarkedPostUseCase,
+        _savePostBookmarkLocalUseCase = savePostBookmarkLocalUseCase;
 
   final Rx<PostDetailEntity?> post = Rx<PostDetailEntity?>(null);
   final RxList<PostEntity> relatedPostList = <PostEntity>[].obs;
@@ -115,13 +123,17 @@ class PostViewController extends GetxController {
   }
 
   Future<void> _initPostState() async {
-    // 좋아요 여부(로컬 캐시)와 상세 정보(서버)를 함께 받은 뒤,
-    // 상세에서 조회한 최신 좋아요 수를 게시물 목록 화면들에 동기화한다.
+    // 좋아요·북마크 여부(로컬 캐시)와 상세 정보(서버)를 함께 받은 뒤,
+    // 상세에서 조회한 최신 좋아요/북마크 수를 게시물 목록 화면들에 동기화한다.
     await Future.wait([
       _initIsFavorite(),
+      _initIsBookmark(),
       fetchPostDetail(postId),
     ]);
-    _syncLikeToList();
+    if (post.value != null) {
+      _syncLikeToList();
+      _syncBookmarkToList();
+    }
   }
 
   Future<void> _initIsFavorite() async {
@@ -130,6 +142,10 @@ class PostViewController extends GetxController {
     initialHeartState = liked;
   }
 
+  Future<void> _initIsBookmark() async {
+    selectBookMark.value = await _bookmarkedPostUseCase(postId);
+  }
+
   /// 상세에서 조회한 최신 좋아요 상태/수를 목록 화면 캐시에 반영한다.
   /// (토글하지 않고 단순 조회만 한 경우에도 미리보기 count가 상세와 일치하도록)
   void _syncLikeToList() {
@@ -140,6 +156,15 @@ class PostViewController extends GetxController {
     );
   }
 
+  /// 좋아요와 동일하게, 상세에서의 북마크 상태/수를 목록 화면 캐시에 반영한다.
+  void _syncBookmarkToList() {
+    Get.find<PostController>().updateBookmarkState(
+      postId,
+      selectBookMark.value,
+      bookMarkTotal.value,
+    );
+  }
+
 
   Future<void> fetchPostDetail(int postId) async {
     isLoading.value = true;
@@ -254,6 +279,13 @@ class PostViewController extends GetxController {
       } else {
         await _unbookmarkPostUseCase(postId);
       }
+      await _savePostBookmarkLocalUseCase(postId, isBookmarked);
+
+      Get.find<PostController>().updateBookmarkState(
+        postId,
+        isBookmarked,
+        bookMarkTotal.value,
+      );
     } catch (e) {
       debugPrint('[PostViewController] 북마크 토글 실패 - error: $e');
       selectBookMark.value = !isBookmarked;
diff --git a/lib/presentation/post/widgets/post_item.dart b/lib/presentation/post/widgets/post_item.dart
index c206fbc3..922ba101 100644
--- a/lib/presentation/post/widgets/post_item.dart
+++ b/lib/presentation/post/widgets/post_item.dart
@@ -58,6 +58,7 @@ class PostItem extends GetView<PostController> {
     final visibleSkills = post.tags.take(2).toList();
     final remainCount = post.tags.length - 2;
 
+
     return Row(
       children: [
         Expanded(