diff --git a/back/src/main/java/com/back/domain/post/comment/dto/CommentAllResponse.java b/back/src/main/java/com/back/domain/post/comment/dto/CommentAllResponse.java
index b03e1901..dcfb90c4 100644
--- a/back/src/main/java/com/back/domain/post/comment/dto/CommentAllResponse.java
+++ b/back/src/main/java/com/back/domain/post/comment/dto/CommentAllResponse.java
@@ -10,7 +10,8 @@ public record CommentAllResponse(
         Long id,
         String content,
         String authorName,
-        LocalDateTime createdAt
+        LocalDateTime createdAt,
+        Long memberId
 ) {
 
 
@@ -19,7 +20,8 @@ public static CommentAllResponse from(PostComment comment) {
                 comment.getId(),
                 comment.getContent(),
                 comment.getAuthorName(),
-                comment.getCreateDate()
+                comment.getCreateDate(),
+                comment.getAuthorId()
         );
     }
 }
diff --git a/back/src/main/java/com/back/domain/post/comment/entity/PostComment.java b/back/src/main/java/com/back/domain/post/comment/entity/PostComment.java
index 7c231d51..d58bb2ff 100644
--- a/back/src/main/java/com/back/domain/post/comment/entity/PostComment.java
+++ b/back/src/main/java/com/back/domain/post/comment/entity/PostComment.java
@@ -37,6 +37,10 @@ public String getAuthorName() {
         return member.getName();
     }
 
+    public Long getAuthorId() {
+        return member.getId();
+    }
+
     @Builder
     public PostComment(Post post, String content, Member member, String role) {
         this.post = post;