diff --git a/src/main/java/com/mpnp/baechelin/bookmark/controller/BookmarkController.java b/src/main/java/com/mpnp/baechelin/bookmark/controller/BookmarkController.java
index 523344b..347bade 100644
--- a/src/main/java/com/mpnp/baechelin/bookmark/controller/BookmarkController.java
+++ b/src/main/java/com/mpnp/baechelin/bookmark/controller/BookmarkController.java
@@ -3,6 +3,9 @@
 import com.mpnp.baechelin.bookmark.dto.BookmarkInfoDto;
 import com.mpnp.baechelin.bookmark.dto.BookmarkRequestDto;
 import com.mpnp.baechelin.bookmark.service.BookmarkService;
+import com.mpnp.baechelin.common.SuccessResponse;
+import com.mpnp.baechelin.exception.CustomException;
+import com.mpnp.baechelin.exception.ErrorCode;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
@@ -20,29 +23,32 @@
 public class BookmarkController {
     private final BookmarkService bookmarkService;
 
-    /** 북마크 생성 폴더 담기 */
+    /**
+     * 북마크 생성 폴더 담기
+     */
     @PostMapping("/bookmark")
-    public ResponseEntity<?> bookmark(@RequestBody BookmarkRequestDto bookmarkRequestDto,
-                                      @AuthenticationPrincipal User user){
-
-        if(user==null){ throw new IllegalArgumentException("해당하는 회원 정보가 없습니다."); }
+    public SuccessResponse bookmark(@RequestBody BookmarkRequestDto bookmarkRequestDto,
+                                    @AuthenticationPrincipal User user) {
+        if (user == null) {
+            throw new CustomException(ErrorCode.NO_USER_FOUND);
+        }
         bookmarkService.bookmark(bookmarkRequestDto, user.getUsername());
-
-        return new ResponseEntity<>(HttpStatus.OK);
+        return new SuccessResponse("북마크를 폴더에 저장 완료");
     }
 
     @DeleteMapping("/bookmark/{bookmarkId}")
-    public ResponseEntity<?> bookmarkDelete(@PathVariable int bookmarkId,
-                                            @AuthenticationPrincipal User user){
-        if(user==null){ throw new IllegalArgumentException("해당하는 회원 정보가 없습니다."); }
+    public SuccessResponse bookmarkDelete(@PathVariable int bookmarkId,
+                                            @AuthenticationPrincipal User user) {
+        if (user == null) {
+            throw new CustomException(ErrorCode.NO_USER_FOUND);
+        }
         bookmarkService.bookmarkDelete(bookmarkId, user.getUsername());
-
-        return new ResponseEntity<>(HttpStatus.OK);
+        return new SuccessResponse("북마크를 삭제 완료");
     }
 
     @GetMapping("/bookmarkTop")
-    public ResponseEntity<?> bookmarkTop(@AuthenticationPrincipal User user,
-                                         @PageableDefault(page = 0, size = 5, sort = "id", direction = Sort.Direction.DESC) Pageable pageable){
+    public ResponseEntity<List<BookmarkInfoDto>> bookmarkTop(@AuthenticationPrincipal User user,
+                                         @PageableDefault(page = 0, size = 5, sort = "id", direction = Sort.Direction.DESC) Pageable pageable) {
 
         List<BookmarkInfoDto> bookmarkList = bookmarkService.bookmarkTop(user.getUsername(), pageable);
         return new ResponseEntity<>(bookmarkList, HttpStatus.OK);
diff --git a/src/main/java/com/mpnp/baechelin/bookmark/service/BookmarkService.java b/src/main/java/com/mpnp/baechelin/bookmark/service/BookmarkService.java
index 73dcc1f..041fef6 100644
--- a/src/main/java/com/mpnp/baechelin/bookmark/service/BookmarkService.java
+++ b/src/main/java/com/mpnp/baechelin/bookmark/service/BookmarkService.java
@@ -6,6 +6,8 @@
 import com.mpnp.baechelin.bookmark.dto.BookmarkRequestDto;
 import com.mpnp.baechelin.bookmark.repository.BookmarkRepository;
 import com.mpnp.baechelin.bookmark.repository.FolderRepository;
+import com.mpnp.baechelin.exception.CustomException;
+import com.mpnp.baechelin.exception.ErrorCode;
 import com.mpnp.baechelin.store.domain.Store;
 import com.mpnp.baechelin.store.repository.StoreImgRepository;
 import com.mpnp.baechelin.store.repository.StoreRepository;
@@ -33,10 +35,10 @@ public class BookmarkService {
 
     @Transactional
     public void bookmark(BookmarkRequestDto bookmarkRequestDto, String socialId) {
-
-        Folder folder = folderRepository.findById(bookmarkRequestDto.getFolderId()).orElseThrow(()-> new IllegalArgumentException("폴더가 존재하지 않습니다"));
-        Store  store  = storeRepository.findById((long) bookmarkRequestDto.getStoreId()).orElseThrow(()-> new IllegalArgumentException("가게가 존재하지 않습니다"));
-        User   user   = userRepository.findBySocialId(socialId); if(user == null) { throw new IllegalArgumentException("해당하는 유저가 없습니다."); }
+        // 북마크 폴더 생성하는 Flow를 따르므로 bookmarkRequestDto의 folderId는 존재
+        Folder folder = folderRepository.findById(bookmarkRequestDto.getFolderId()).orElseThrow(()-> new CustomException(ErrorCode.NO_FOLDER_FOUND));
+        Store  store  = storeRepository.findById((long) bookmarkRequestDto.getStoreId()).orElseThrow(()-> new CustomException(ErrorCode.NO_BOOKMARK_FOUND));
+        User   user   = userRepository.findBySocialId(socialId); if(user == null) {throw new CustomException(ErrorCode.NO_USER_FOUND); }
 
         Bookmark bookmark = Bookmark
                 .builder()
@@ -52,8 +54,8 @@ public void bookmark(BookmarkRequestDto bookmarkRequestDto, String socialId) {
     }
     @Transactional
     public void bookmarkDelete(int bookmarkId, String socialId) {
-        User user = userRepository.findBySocialId(socialId); if(user == null) { throw new IllegalArgumentException("해당하는 유저가 없습니다."); }
-        Bookmark bookmark = bookmarkRepository.findById(bookmarkId).orElseThrow(() -> new IllegalArgumentException("해당하는 북마크는 이미 삭제 되었습니다"));
+        User user = userRepository.findBySocialId(socialId); if(user == null) { throw new CustomException(ErrorCode.NO_USER_FOUND); }
+        Bookmark bookmark = bookmarkRepository.findById(bookmarkId).orElseThrow(() -> new CustomException(ErrorCode.NO_BOOKMARK_FOUND));
         Store store = bookmark.getStoreId();
         store.removeBookmark(bookmark);
         bookmarkRepository.deleteById(bookmarkId);
@@ -66,7 +68,6 @@ public List<BookmarkInfoDto> bookmarkTop(String socialId, Pageable pageable) {
         User user = userRepository.findBySocialId(socialId);
         Page<Bookmark> bookmarkPage = bookmarkRepository.findAllByUserId(user, pageable);
 
-
         List<BookmarkInfoDto> bookmarkList = new ArrayList<>();
         for(Bookmark bookmark: bookmarkPage){
             BookmarkInfoDto bookmarkInfoDto = new BookmarkInfoDto(bookmark);