diff --git a/src/main/java/com/cotato/kampus/domain/comment/application/CommentFinder.java b/src/main/java/com/cotato/kampus/domain/comment/application/CommentFinder.java
index a896abc..106ca86 100644
--- a/src/main/java/com/cotato/kampus/domain/comment/application/CommentFinder.java
+++ b/src/main/java/com/cotato/kampus/domain/comment/application/CommentFinder.java
@@ -33,16 +33,7 @@ public Comment findComment(Long commentId){
 	}
 
 	public List<CommentDto> findComments(Long postId){
-		List<Comment> comments = commentRepository.findAllByPostId(postId);
-		List<CommentDto> commentDtos = comments.stream()
-			.map(CommentDto::from)
-			.toList();
-
-		return commentDtos;
-	}
-
-	public List<CommentDto> findChildComments(Long parentId){
-		List<Comment> comments = commentRepository.findAllByParentId(parentId);
+		List<Comment> comments = commentRepository.findAllByPostIdOrderByCreatedTimeAsc(postId);
 		List<CommentDto> commentDtos = comments.stream()
 			.map(CommentDto::from)
 			.toList();
diff --git a/src/main/java/com/cotato/kampus/domain/comment/dao/CommentRepository.java b/src/main/java/com/cotato/kampus/domain/comment/dao/CommentRepository.java
index 1e55b74..015ca32 100644
--- a/src/main/java/com/cotato/kampus/domain/comment/dao/CommentRepository.java
+++ b/src/main/java/com/cotato/kampus/domain/comment/dao/CommentRepository.java
@@ -18,9 +18,7 @@ public interface CommentRepository extends JpaRepository<Comment, Long> {
 
 	boolean existsByParentId(Long parentId);
 
-	List<Comment> findAllByPostId(Long postId);
-
-	List<Comment> findAllByParentId(Long parentId);
+	List<Comment> findAllByPostIdOrderByCreatedTimeAsc(Long postId);
 
 	Slice<Comment> findAllByUserId(Long userId, Pageable pageable);
 }