diff --git a/module-domain/src/main/java/com/mile/comment/service/CommentService.java b/module-domain/src/main/java/com/mile/comment/service/CommentService.java
index 7d089beb..f7e960a9 100644
--- a/module-domain/src/main/java/com/mile/comment/service/CommentService.java
+++ b/module-domain/src/main/java/com/mile/comment/service/CommentService.java
@@ -20,6 +20,7 @@
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.stream.Collectors;
 
 @Service
@@ -142,10 +143,15 @@ private List<Comment> findByPostId(
         return commentRepository.findByPostId(postId);
     }
 
-    public int findCommentCountByPost(
+
+    private int findCommentReplyByPost(
             final Post post
     ) {
-        return findByPostId(post.getId()).size();
+        AtomicInteger result = new AtomicInteger();
+        findByPostId(post.getId()).iterator().forEachRemaining(
+                c -> result.addAndGet(commentReplyService.findRepliesCountByComment(c))
+        );
+        return result.intValue();
     }
 
 
@@ -165,6 +171,6 @@ public void deleteAllCommentByWriterNameId(
     public int countByPost(
             final Post post
     ) {
-        return commentRepository.countByPost(post);
+        return commentRepository.countByPost(post) + findCommentReplyByPost(post);
     }
 }
diff --git a/module-domain/src/main/java/com/mile/commentreply/service/CommentReplyService.java b/module-domain/src/main/java/com/mile/commentreply/service/CommentReplyService.java
index 74afe1d9..95a3422d 100644
--- a/module-domain/src/main/java/com/mile/commentreply/service/CommentReplyService.java
+++ b/module-domain/src/main/java/com/mile/commentreply/service/CommentReplyService.java
@@ -48,7 +48,7 @@ private void authenticateReplyWithUserId(
             final Long userId,
             final CommentReply commentReply
     ) {
-        if(!commentReply.getWriterName().getWriter().getId().equals(userId)) {
+        if (!commentReply.getWriterName().getWriter().getId().equals(userId)) {
             throw new UnauthorizedException(ErrorMessage.REPLY_USER_FORBIDDEN);
         }
     }
@@ -58,6 +58,7 @@ public void deleteRepliesByComment(
     ) {
         commentReplyRepository.deleteAll(commentReplyRepository.findByComment(comment));
     }
+
     public List<ReplyResponse> findRepliesByComment(
             final Comment comment,
             final Long writerNameId
@@ -65,6 +66,12 @@ public List<ReplyResponse> findRepliesByComment(
         return commentReplyRepository.findByComment(comment).stream().map(c -> ReplyResponse.of(c, writerNameId, isWriterOfPost(c))).collect(Collectors.toList());
     }
 
+    public int findRepliesCountByComment(
+            final Comment comment
+    ) {
+        return commentReplyRepository.findByComment(comment).size();
+    }
+
     private boolean isWriterOfPost(final CommentReply commentReply) {
         return commentReply.getComment().getPost().getWriterName().getId().equals(commentReply.getWriterName().getId());
     }
diff --git a/module-domain/src/main/java/com/mile/topic/service/TopicService.java b/module-domain/src/main/java/com/mile/topic/service/TopicService.java
index 95985f2e..bbe4e236 100644
--- a/module-domain/src/main/java/com/mile/topic/service/TopicService.java
+++ b/module-domain/src/main/java/com/mile/topic/service/TopicService.java
@@ -152,7 +152,7 @@ public PostListInTopicResponse getPostListByTopic(
         Slice<Post> posts = postGetService.findByTopicAndLastPostId(topic, secureUrlUtil.decodeIfNotNull(lastPostId));
         return PostListInTopicResponse.of(TopicOfMoimResponse.of(topic),
                 posts.stream().sorted(Comparator.comparing(BaseTimeEntity::getCreatedAt).reversed())
-                        .map(p -> PostListResponse.of(p, commentService.findCommentCountByPost(p))).toList(),
+                        .map(p -> PostListResponse.of(p, commentService.countByPost(p))).toList(),
                 posts.hasNext()
         );
     }