diff --git a/module-api/src/main/java/com/mile/controller/post/PostController.java b/module-api/src/main/java/com/mile/controller/post/PostController.java
index f56bb1d1..48596e16 100644
--- a/module-api/src/main/java/com/mile/controller/post/PostController.java
+++ b/module-api/src/main/java/com/mile/controller/post/PostController.java
@@ -130,12 +130,12 @@ public ResponseEntity<SuccessResponse> putPost(
 
     @DeleteMapping("/{postId}")
     @Override
+    @UserAuthAnnotation(UserAuthenticationType.WRITER_NAME)
     public ResponseEntity<SuccessResponse> deletePost(
             @PostIdPathVariable final Long postId,
-            @UserId final Long userId,
             @PathVariable("postId") final String postUrl
     ) {
-        postService.deletePost(postId, userId);
+        postService.deletePost(postId, WriterNameContextUtil.getMoimWriterNameMapContext());
         return ResponseEntity.status(HttpStatus.OK).body(SuccessResponse.of(SuccessMessage.POST_DELETE_SUCCESS));
     }
 
diff --git a/module-api/src/main/java/com/mile/controller/post/PostControllerSwagger.java b/module-api/src/main/java/com/mile/controller/post/PostControllerSwagger.java
index bd2c9f80..8a6fd560 100644
--- a/module-api/src/main/java/com/mile/controller/post/PostControllerSwagger.java
+++ b/module-api/src/main/java/com/mile/controller/post/PostControllerSwagger.java
@@ -196,7 +196,6 @@ ResponseEntity<SuccessResponse> deleteTemporaryPost(
     )
     ResponseEntity<SuccessResponse> deletePost(
             @Parameter(schema = @Schema(implementation = String.class), in = ParameterIn.PATH) final Long postId,
-            @Parameter(schema = @Schema(implementation = String.class), in = ParameterIn.PATH) @UserId final Long userId,
             @PathVariable("postId") final String postUrl
     );
 
diff --git a/module-domain/src/main/java/com/mile/moim/service/MoimRetriever.java b/module-domain/src/main/java/com/mile/moim/service/MoimRetriever.java
index f5b3be0f..b27dc5ba 100644
--- a/module-domain/src/main/java/com/mile/moim/service/MoimRetriever.java
+++ b/module-domain/src/main/java/com/mile/moim/service/MoimRetriever.java
@@ -62,6 +62,13 @@ public boolean isMoimOwnerEqualsUser(
         return moim.getOwner().getWriter().getId().equals(userId);
     }
 
+    public boolean isMoimOwnerEqualsWriterName(
+            final Moim moim,
+            final Long writerNameId
+    ) {
+        return moim.getOwner().getId().equals(writerNameId);
+    }
+
     public List<Moim> findBestMoims() {
         LocalDateTime endOfWeek = LocalDateTime.now();
         LocalDateTime startOfWeek = endOfWeek.minusDays(7);
diff --git a/module-domain/src/main/java/com/mile/post/service/PostService.java b/module-domain/src/main/java/com/mile/post/service/PostService.java
index 85a66f2c..f54ea219 100644
--- a/module-domain/src/main/java/com/mile/post/service/PostService.java
+++ b/module-domain/src/main/java/com/mile/post/service/PostService.java
@@ -171,17 +171,18 @@ public PostAuthenticateResponse getAuthenticateWriter(
     @Transactional
     public void deletePost(
             final Long postId,
-            final Long userId
+            final HashMap<Long, WriterNameInfo> moimWriteNameMap
     ) {
         Post post = postRetriever.findById(postId);
-        Long moimId = post.getTopic().getMoim().getId();
-        WriterName writerName = writerNameRetriever.findByMoimAndUser(moimId, userId);
-        if (!postRetriever.isWriterOfPost(post, writerName) && !moimRetriever.isMoimOwnerEqualsUser(post.getTopic().getMoim(), userId)) {
+        Moim moim = post.getTopic().getMoim();
+        final Long writerNameId = MoimWriterNameMapUtil.getWriterNameIdMoimWriterNameMap(moim.getId(), moimWriteNameMap);
+        if (!postRetriever.existsPostByWriterWithPost(postId, writerNameId) && !moimRetriever.isMoimOwnerEqualsWriterName(moim, writerNameId)) {
             throw new ForbiddenException(ErrorMessage.WRITER_AUTHENTICATE_ERROR);
         }
         postRemover.delete(post);
     }
 
+
     @Transactional(readOnly = true)
     public TemporaryPostGetResponse getTemporaryPost(
             final Long postId,