diff --git a/src/main/java/com/ssafy/ssafsound/domain/comment/domain/Comment.java b/src/main/java/com/ssafy/ssafsound/domain/comment/domain/Comment.java
index 9ce1c141f..694e4a90e 100644
--- a/src/main/java/com/ssafy/ssafsound/domain/comment/domain/Comment.java
+++ b/src/main/java/com/ssafy/ssafsound/domain/comment/domain/Comment.java
@@ -1,6 +1,7 @@
 package com.ssafy.ssafsound.domain.comment.domain;
 
 import com.ssafy.ssafsound.domain.BaseTimeEntity;
+import com.ssafy.ssafsound.domain.comment.dto.PostCommentWriteReqDto;
 import com.ssafy.ssafsound.domain.member.domain.Member;
 import com.ssafy.ssafsound.domain.post.domain.Post;
 import lombok.AllArgsConstructor;
diff --git a/src/main/java/com/ssafy/ssafsound/domain/comment/repository/CommentRepository.java b/src/main/java/com/ssafy/ssafsound/domain/comment/repository/CommentRepository.java
index 6d1074955..6adee2a36 100644
--- a/src/main/java/com/ssafy/ssafsound/domain/comment/repository/CommentRepository.java
+++ b/src/main/java/com/ssafy/ssafsound/domain/comment/repository/CommentRepository.java
@@ -1,21 +1,29 @@
 package com.ssafy.ssafsound.domain.comment.repository;
 
-import com.ssafy.ssafsound.domain.comment.domain.Comment;
-import org.springframework.data.domain.Pageable;
+import java.util.List;
+
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
-import java.util.List;
+import com.ssafy.ssafsound.domain.comment.domain.Comment;
 
 @Repository
 public interface CommentRepository extends JpaRepository<Comment, Long> {
-    @Query("SELECT c FROM comment c " +
-            "JOIN FETCH c.commentNumber " +
-            "JOIN FETCH c.member " +
-            "JOIN FETCH c.commentGroup g " +
-            "WHERE c.post.id = :postId " +
-            "ORDER BY g.id ")
-    List<Comment> findAllPostIdWithDetailsFetchOrderByCommentGroupId(@Param("postId") Long postId);
+	@Query("SELECT c FROM comment c " +
+		"JOIN FETCH c.commentNumber " +
+		"JOIN FETCH c.member " +
+		"JOIN FETCH c.commentGroup g " +
+		"WHERE c.post.id = :postId " +
+		"ORDER BY g.id ")
+	List<Comment> findAllPostIdWithDetailsFetchOrderByCommentGroupId(@Param("postId") Long postId);
+
+	@Modifying
+	@Query(value = "update comment "
+		+ "set comment_group = :id "
+		+ "where comment_id = :id", nativeQuery = true)
+	void updateByCommentGroup(@Param("id") Long id);
+
 }
diff --git a/src/main/java/com/ssafy/ssafsound/domain/comment/service/CommentService.java b/src/main/java/com/ssafy/ssafsound/domain/comment/service/CommentService.java
index 3d83b35d2..8ac19cfe4 100644
--- a/src/main/java/com/ssafy/ssafsound/domain/comment/service/CommentService.java
+++ b/src/main/java/com/ssafy/ssafsound/domain/comment/service/CommentService.java
@@ -14,6 +14,7 @@
 import com.ssafy.ssafsound.domain.member.exception.MemberErrorInfo;
 import com.ssafy.ssafsound.domain.member.exception.MemberException;
 import com.ssafy.ssafsound.domain.member.repository.MemberRepository;
+import com.ssafy.ssafsound.domain.post.domain.Post;
 import com.ssafy.ssafsound.domain.post.dto.PostCommonLikeResDto;
 import com.ssafy.ssafsound.domain.post.exception.PostErrorInfo;
 import com.ssafy.ssafsound.domain.post.exception.PostException;
@@ -69,7 +70,7 @@ public CommentIdElement writeComment(Long postId, Long loginMemberId, PostCommen
                 .build();
 
         comment = commentRepository.save(comment);
-        comment.setCommentGroup(comment);
+        commentRepository.updateByCommentGroup(comment.getId());
 
         return new CommentIdElement(comment.getId());
     }