diff --git a/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/mybook/service/MyBookService.java b/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/mybook/service/MyBookService.java
index 0dc4001..c51a24c 100644
--- a/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/mybook/service/MyBookService.java
+++ b/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/mybook/service/MyBookService.java
@@ -83,7 +83,10 @@ public MyBookDetailDto findByIdForDetail(long id) {
         MyBook myBook = findById(id);
 
         PostKeyword postKeyword = myBook.getProduct().getPostKeyword();
-        List<PostHashTag> postHashTags = postHashTagService.findByPostKeyword(postKeyword);
+        Member author = myBook.getProduct().getAuthor();
+
+        // 해당 작가, 키워드와 관련된 글만 조회
+        List<PostHashTag> postHashTags = postHashTagService.findByPostKeywordAndMember(postKeyword, author);
 
         List<Post> posts = postHashTags.stream()
                 .map(postHashTag -> postHashTag.getPost())
diff --git a/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/postHashTag/repository/PostHashTagRepository.java b/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/postHashTag/repository/PostHashTagRepository.java
index b9622aa..2cc63ae 100644
--- a/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/postHashTag/repository/PostHashTagRepository.java
+++ b/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/postHashTag/repository/PostHashTagRepository.java
@@ -1,5 +1,6 @@
 package com.example.mutbooks.app.postHashTag.repository;
 
+import com.example.mutbooks.app.member.entity.Member;
 import com.example.mutbooks.app.postHashTag.entity.PostHashTag;
 import com.example.mutbooks.app.postKeyword.entity.PostKeyword;
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -12,5 +13,5 @@ public interface PostHashTagRepository extends JpaRepository<PostHashTag, Long>
 
     List<PostHashTag> findByPostId(Long postId);
 
-    List<PostHashTag> findByPostKeyword(PostKeyword postKeyword);
+    List<PostHashTag> findByPostKeywordAndMember(PostKeyword postKeyword, Member member);
 }
diff --git a/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/postHashTag/service/PostHashTagService.java b/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/postHashTag/service/PostHashTagService.java
index cca6459..978eefd 100644
--- a/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/postHashTag/service/PostHashTagService.java
+++ b/4Week_Mission/mutbooks/src/main/java/com/example/mutbooks/app/postHashTag/service/PostHashTagService.java
@@ -1,10 +1,11 @@
 package com.example.mutbooks.app.postHashTag.service;
 
+import com.example.mutbooks.app.member.entity.Member;
+import com.example.mutbooks.app.post.entity.Post;
 import com.example.mutbooks.app.postHashTag.entity.PostHashTag;
 import com.example.mutbooks.app.postHashTag.repository.PostHashTagRepository;
 import com.example.mutbooks.app.postKeyword.entity.PostKeyword;
 import com.example.mutbooks.app.postKeyword.service.PostKeywordService;
-import com.example.mutbooks.app.post.entity.Post;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
@@ -78,7 +79,7 @@ public List<PostHashTag> findByPostId(long postId) {
         return postHashTagRepository.findByPostId(postId);
     }
 
-    public List<PostHashTag> findByPostKeyword(PostKeyword postKeyword) {
-        return postHashTagRepository.findByPostKeyword(postKeyword);
+    public List<PostHashTag> findByPostKeywordAndMember(PostKeyword postKeyword, Member member) {
+        return postHashTagRepository.findByPostKeywordAndMember(postKeyword, member);
     }
 }