diff --git a/src/main/java/com/beotkkot/qtudy/controller/comment/CommentController.java b/src/main/java/com/beotkkot/qtudy/controller/comment/CommentController.java
index 60676cf..332cb3f 100644
--- a/src/main/java/com/beotkkot/qtudy/controller/comment/CommentController.java
+++ b/src/main/java/com/beotkkot/qtudy/controller/comment/CommentController.java
@@ -2,6 +2,7 @@
 
 import com.beotkkot.qtudy.dto.request.comments.CommentsRequestDto;
 import com.beotkkot.qtudy.dto.response.comments.CommentsResponseDto;
+import com.beotkkot.qtudy.dto.response.comments.DeleteCommentsResponseDto;
 import com.beotkkot.qtudy.dto.response.comments.GetCommentsAllResponseDto;
 import com.beotkkot.qtudy.dto.response.posts.PostsResponseDto;
 import com.beotkkot.qtudy.service.auth.AuthService;
@@ -66,7 +67,7 @@ public ResponseEntity<? super CommentsResponseDto> patchComment(@RequestParam("p
 
     // 댓글 삭제
     @DeleteMapping("/posts/comments")
-    public ResponseEntity<? super CommentsResponseDto> deleteComment(@RequestParam("postId") Long postId, @RequestParam("commentId") Long commentId, @RequestHeader("Authorization") String token) {
+    public ResponseEntity<? super DeleteCommentsResponseDto> deleteComment(@RequestParam("postId") Long postId, @RequestParam("commentId") Long commentId, @RequestHeader("Authorization") String token) {
         Long kakao_uid;
         try {
             kakao_uid = authService.getKakaoUserInfo(token).getId();
@@ -78,7 +79,7 @@ public ResponseEntity<? super CommentsResponseDto> deleteComment(@RequestParam("
             return PostsResponseDto.databaseError();
         }
 
-        ResponseEntity<? super CommentsResponseDto> response = commentService.deleteComment(postId, commentId, kakao_uid);
+        ResponseEntity<? super DeleteCommentsResponseDto> response = commentService.deleteComment(postId, commentId, kakao_uid);
         return response;
     }
 }
diff --git a/src/main/java/com/beotkkot/qtudy/dto/response/comments/CommentsResponseDto.java b/src/main/java/com/beotkkot/qtudy/dto/response/comments/CommentsResponseDto.java
index 0dce2c4..12dedc0 100644
--- a/src/main/java/com/beotkkot/qtudy/dto/response/comments/CommentsResponseDto.java
+++ b/src/main/java/com/beotkkot/qtudy/dto/response/comments/CommentsResponseDto.java
@@ -9,12 +9,18 @@
 
 @Getter
 public class CommentsResponseDto extends ResponseDto{
-    public CommentsResponseDto() {
+
+    private String name;
+    private String profileImageUrl;
+
+    public CommentsResponseDto(String name, String profileImageUrl) {
         super(ResponseCode.SUCCESS, ResponseMessage.SUCCESS);
+        this.name = name;
+        this.profileImageUrl = profileImageUrl;
     }
 
-    public static ResponseEntity<CommentsResponseDto> success() {
-        CommentsResponseDto result = new CommentsResponseDto();
+    public static ResponseEntity<CommentsResponseDto> success(String name, String profileImageUrl) {
+        CommentsResponseDto result = new CommentsResponseDto(name, profileImageUrl);
         return ResponseEntity.status(HttpStatus.OK).body(result);
     }
 
@@ -32,4 +38,9 @@ public static ResponseEntity<? super CommentsResponseDto> notExistedComment() {
         ResponseDto result = new ResponseDto(ResponseCode.NOT_EXISTED_COMMENT, ResponseMessage.NOT_EXISTED_COMMENT);
         return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(result);
     }
+
+    public static ResponseEntity<ResponseDto> noPermission() {
+        ResponseDto result = new ResponseDto(ResponseCode.NO_PERMISSION, ResponseMessage.NO_PERMISSION);
+        return ResponseEntity.status(HttpStatus.FORBIDDEN).body(result);
+    }
 }
diff --git a/src/main/java/com/beotkkot/qtudy/dto/response/comments/DeleteCommentsResponseDto.java b/src/main/java/com/beotkkot/qtudy/dto/response/comments/DeleteCommentsResponseDto.java
new file mode 100644
index 0000000..d623266
--- /dev/null
+++ b/src/main/java/com/beotkkot/qtudy/dto/response/comments/DeleteCommentsResponseDto.java
@@ -0,0 +1,40 @@
+package com.beotkkot.qtudy.dto.response.comments;
+
+import com.beotkkot.qtudy.common.ResponseCode;
+import com.beotkkot.qtudy.common.ResponseMessage;
+import com.beotkkot.qtudy.dto.response.ResponseDto;
+import lombok.Getter;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+
+@Getter
+public class DeleteCommentsResponseDto extends ResponseDto{
+    public DeleteCommentsResponseDto() {
+        super(ResponseCode.SUCCESS, ResponseMessage.SUCCESS);
+    }
+
+    public static ResponseEntity<DeleteCommentsResponseDto> success() {
+        DeleteCommentsResponseDto result = new DeleteCommentsResponseDto();
+        return ResponseEntity.status(HttpStatus.OK).body(result);
+    }
+
+    public static ResponseEntity<ResponseDto> notExistedPost(){
+        ResponseDto result = new ResponseDto(ResponseCode.NOT_EXISTED_POST, ResponseMessage.NOT_EXISTED_POST);
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(result);
+    }
+
+    public static ResponseEntity<ResponseDto> notExistedUser() {
+        ResponseDto result = new ResponseDto(ResponseCode.NOT_EXISTED_USER, ResponseMessage.NOT_EXISTED_USER);
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(result);
+    }
+
+    public static ResponseEntity<? super DeleteCommentsResponseDto> notExistedComment() {
+        ResponseDto result = new ResponseDto(ResponseCode.NOT_EXISTED_COMMENT, ResponseMessage.NOT_EXISTED_COMMENT);
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(result);
+    }
+
+    public static ResponseEntity<ResponseDto> noPermission() {
+        ResponseDto result = new ResponseDto(ResponseCode.NO_PERMISSION, ResponseMessage.NO_PERMISSION);
+        return ResponseEntity.status(HttpStatus.FORBIDDEN).body(result);
+    }
+}
diff --git a/src/main/java/com/beotkkot/qtudy/dto/response/mypage/GetMyPageInfoResponseDto.java b/src/main/java/com/beotkkot/qtudy/dto/response/mypage/GetMyPageInfoResponseDto.java
index 802739b..d90c61b 100644
--- a/src/main/java/com/beotkkot/qtudy/dto/response/mypage/GetMyPageInfoResponseDto.java
+++ b/src/main/java/com/beotkkot/qtudy/dto/response/mypage/GetMyPageInfoResponseDto.java
@@ -21,7 +21,7 @@ private GetMyPageInfoResponseDto(Users user, String email) {
         super(ResponseCode.SUCCESS, ResponseMessage.SUCCESS);
         this.name = user.getName();
         this.email = email;
-        this.profileImageUrl = null;
+        this.profileImageUrl = user.getProfileImageUrl();
     }
 
     public static ResponseEntity<GetMyPageInfoResponseDto> success(Users user, String email) {
diff --git a/src/main/java/com/beotkkot/qtudy/service/comments/CommentService.java b/src/main/java/com/beotkkot/qtudy/service/comments/CommentService.java
index be0776a..49f1d1b 100644
--- a/src/main/java/com/beotkkot/qtudy/service/comments/CommentService.java
+++ b/src/main/java/com/beotkkot/qtudy/service/comments/CommentService.java
@@ -6,6 +6,7 @@
 import com.beotkkot.qtudy.dto.request.comments.CommentsRequestDto;
 import com.beotkkot.qtudy.dto.response.ResponseDto;
 import com.beotkkot.qtudy.dto.response.comments.CommentsResponseDto;
+import com.beotkkot.qtudy.dto.response.comments.DeleteCommentsResponseDto;
 import com.beotkkot.qtudy.dto.response.comments.GetCommentsAllResponseDto;
 import com.beotkkot.qtudy.repository.comments.CommentsRepository;
 import com.beotkkot.qtudy.repository.posts.PostsRepository;
@@ -53,16 +54,14 @@ public ResponseEntity<? super CommentsResponseDto> saveComment(Long postId, Long
 
                 // postRespo의 commentCount 업데이트
                 int commentCount = commentRepo.countByPostId(postId);
-                List<Posts> posts = postRepo.findAllByPostId(postId);
-                for (Posts post : posts) {
-                    post.setCommentCount(commentCount);
-                }
+                Posts post = postRepo.findByPostId(postId);
+                post.setCommentCount(commentCount);
             }
         } catch (Exception exception) {
             log.info("error " + exception.getMessage());
             return ResponseDto.databaseError();
         }
-        return CommentsResponseDto.success();
+        return CommentsResponseDto.success(userRepo.findByKakaoId(userUid).getName(), userRepo.findByKakaoId(userUid).getProfileImageUrl());
     }
 
     public ResponseEntity<? super GetCommentsAllResponseDto> getAllComment(Long postId, int page) {
@@ -96,28 +95,35 @@ public ResponseEntity<? super CommentsResponseDto> patchComment(Long postId, Lon
             } else {
                 // 댓글 수정
                 Comments comment = commentRepo.findById(commentId).get();
+                System.out.println("comment.getUserUid() = " + comment.getUserUid());
+                System.out.println("userUid = " + userUid);
+                if (!comment.getUserUid().equals(userUid)) {
+                    return CommentsResponseDto.noPermission();
+                }
                 comment.setContent(dto.getContent());
-                System.out.println("content = " + comment.getContent());
             }
         } catch (Exception exception) {
             log.info("error " + exception.getMessage());
             return ResponseDto.databaseError();
         }
-        return CommentsResponseDto.success();
+        return CommentsResponseDto.success(userRepo.findByKakaoId(userUid).getName(), userRepo.findByKakaoId(userUid).getProfileImageUrl());
     }
 
     @Transactional
-    public ResponseEntity<? super CommentsResponseDto> deleteComment(Long postId, Long commentId, Long userUid) {
+    public ResponseEntity<? super DeleteCommentsResponseDto> deleteComment(Long postId, Long commentId, Long userUid) {
         try {
             if (userRepo.findByKakaoId(userUid) == null) {
-                return CommentsResponseDto.notExistedUser();
+                return DeleteCommentsResponseDto.notExistedUser();
             } else if (!postRepo.existsById(postId)) {
-                return CommentsResponseDto.notExistedPost();
+                return DeleteCommentsResponseDto.notExistedPost();
             } else if (!commentRepo.existsById(commentId)) {
-                return CommentsResponseDto.notExistedComment();
+                return DeleteCommentsResponseDto.notExistedComment();
             } else {
                 // 댓글 삭제
                 Comments comment = commentRepo.findById(commentId).get();
+                if (!comment.getUserUid().equals(userUid)) {
+                    return DeleteCommentsResponseDto.noPermission();
+                }
                 commentRepo.delete(comment);
 
                 // postRespo의 commentCount 업데이트
@@ -129,6 +135,6 @@ public ResponseEntity<? super CommentsResponseDto> deleteComment(Long postId, Lo
             log.info("error " + exception.getMessage());
             return ResponseDto.databaseError();
         }
-        return CommentsResponseDto.success();
+        return DeleteCommentsResponseDto.success();
     }
 }