diff --git a/src/main/java/com/cocos/cocos/api/post/dto/response/PostDetailResponse.java b/src/main/java/com/cocos/cocos/api/post/dto/response/PostDetailResponse.java
index 2dd0105..f53ce35 100644
--- a/src/main/java/com/cocos/cocos/api/post/dto/response/PostDetailResponse.java
+++ b/src/main/java/com/cocos/cocos/api/post/dto/response/PostDetailResponse.java
@@ -35,6 +35,8 @@ public record PostDetailResponse(
         @Schema(description = "수정일", example = "yyyy-mm-dd:hh-mm-ss~")
         LocalDateTime updatedAt,
         @Schema(description = "좋아요 클릭 여부", example = "true")
-        boolean isLiked
+        boolean isLiked,
+        @Schema(description = "작성자 여부", example = "true")
+        boolean isWriter
 ) {
 }
diff --git a/src/main/java/com/cocos/cocos/api/post/service/PostService.java b/src/main/java/com/cocos/cocos/api/post/service/PostService.java
index e918271..f4c429b 100644
--- a/src/main/java/com/cocos/cocos/api/post/service/PostService.java
+++ b/src/main/java/com/cocos/cocos/api/post/service/PostService.java
@@ -45,6 +45,7 @@
 
 import java.time.LocalDateTime;
 import java.util.List;
+import java.util.Objects;
 import java.util.UUID;
 
 @Service
@@ -133,6 +134,7 @@ public PostDetailResponse getPostDetail(final Long postId, final Long memberId)
                 .images(images)
                 .category(postCategory.getName())
                 .tags(tags)
+                .isWriter(Objects.equals(memberId, post.getMemberId()))
                 .isLiked(postLikeRepository.existsByMemberIdAndPostId(memberId, postId))
                 .createdAt(post.getCreatedAt())
                 .updatedAt(post.getUpdatedAt())