diff --git a/src/main/java/ussum/homepage/application/comment/service/dto/response/CommentListResponse.java b/src/main/java/ussum/homepage/application/comment/service/dto/response/CommentListResponse.java
index bd07797..198db08 100644
--- a/src/main/java/ussum/homepage/application/comment/service/dto/response/CommentListResponse.java
+++ b/src/main/java/ussum/homepage/application/comment/service/dto/response/CommentListResponse.java
@@ -11,6 +11,11 @@ public static CommentListResponse of(List<PostCommentResponse> postCommentRespon
     }
 
     public void validAuthority(List<String> canAuthorityList) {
-        postComments.forEach(postComment -> postComment.canAuthority(canAuthorityList));
+        postComments.forEach(postComment -> {
+            postComment.canAuthority(canAuthorityList);
+            postComment.getPostReplyComments().stream().forEach(
+                    postReplyComment -> postReplyComment.canAuthority(canAuthorityList)
+            );
+        });
     }
 }
diff --git a/src/main/java/ussum/homepage/application/comment/service/dto/response/PostCommentResponse.java b/src/main/java/ussum/homepage/application/comment/service/dto/response/PostCommentResponse.java
index 01d49a1..d45d1b0 100644
--- a/src/main/java/ussum/homepage/application/comment/service/dto/response/PostCommentResponse.java
+++ b/src/main/java/ussum/homepage/application/comment/service/dto/response/PostCommentResponse.java
@@ -57,6 +57,7 @@ public static PostCommentResponse of(PostComment postComment, User user, String
                 .createdAt(postComment.getCreatedAt())
                 .lastEditedAt(postComment.getLastEditedAt())
                 .likeCount(likeCount)
+                .isAuthor(isAuthor)
                 .isLiked(isLiked)
                 .isDeleted(postComment.getIsDeleted())
                 .postReplyComments(postReplyComments)
diff --git a/src/main/java/ussum/homepage/application/comment/service/dto/response/PostReplyCommentResponse.java b/src/main/java/ussum/homepage/application/comment/service/dto/response/PostReplyCommentResponse.java
index db82e26..2ecfda8 100644
--- a/src/main/java/ussum/homepage/application/comment/service/dto/response/PostReplyCommentResponse.java
+++ b/src/main/java/ussum/homepage/application/comment/service/dto/response/PostReplyCommentResponse.java
@@ -1,20 +1,39 @@
 package ussum.homepage.application.comment.service.dto.response;
 
+import lombok.Builder;
 import ussum.homepage.domain.comment.PostReplyComment;
 import ussum.homepage.domain.user.User;
 
-public record PostReplyCommentResponse(
-        Long id,
-        String authorName,
-        String studentId,
-        String content,
-        String createdAt,
-        String lastEditedAt,
-        Integer likeCount,
-        Boolean isAuthor,
-        Boolean isLiked,
-        Boolean isDeleted
-) {
+import java.util.List;
+
+public class PostReplyCommentResponse {
+    public Long id;
+    public String authorName;
+    public String studentId;
+    public String content;
+    public String createdAt;
+    public String lastEditedAt;
+    public Integer likeCount;
+    public Boolean isAuthor;
+    public Boolean isLiked;
+    public Boolean isDeleted;
+    public List<String> canAuthority;
+
+    @Builder
+    public PostReplyCommentResponse(Long id, String authorName, String studentId, String content, String createdAt, String lastEditedAt, Integer likeCount, Boolean isAuthor, Boolean isLiked, Boolean isDeleted, List<String> canAuthority) {
+        this.id = id;
+        this.authorName = authorName;
+        this.studentId = studentId;
+        this.content = content;
+        this.createdAt = createdAt;
+        this.lastEditedAt = lastEditedAt;
+        this.likeCount = likeCount;
+        this.isAuthor = isAuthor;
+        this.isLiked = isLiked;
+        this.isDeleted = isDeleted;
+        this.canAuthority = canAuthority;
+    }
+
     public static PostReplyCommentResponse of(PostReplyComment postReplyComment, User user, Integer likeCount, Boolean isAuthor, Boolean isLiked) {
         String studentId = user.getStudentId();
         String content = postReplyComment.getContent();
@@ -22,17 +41,21 @@ public static PostReplyCommentResponse of(PostReplyComment postReplyComment, Use
             studentId = "삭제된 사용자입니다.";
             content = "삭제된 댓글입니다.";
         }
-        return new PostReplyCommentResponse(
-                postReplyComment.getId(),
-                user.getName(),
-                studentId,
-                content,
-                postReplyComment.getCreatedAt(),
-                postReplyComment.getLastEditedAt(),
-                likeCount,
-                isAuthor,
-                isLiked,
-                postReplyComment.getIsDeleted()
-        );
+        return PostReplyCommentResponse.builder()
+                .id(postReplyComment.getId())
+                .authorName(user.getName())
+                .studentId(studentId)
+                .content(content)
+                .createdAt(postReplyComment.getCreatedAt())
+                .lastEditedAt(postReplyComment.getLastEditedAt())
+                .likeCount(likeCount)
+                .isAuthor(isAuthor)
+                .isLiked(isLiked)
+                .isDeleted(postReplyComment.getIsDeleted())
+                .build();
+    }
+
+    public void canAuthority(List<String> canAuthorityList) {
+        this.canAuthority = canAuthorityList;
     }
 }