diff --git a/src/main/java/project/backend/business/post/implement/PostReader.java b/src/main/java/project/backend/business/post/implement/PostReader.java
index 660f898..3073abc 100644
--- a/src/main/java/project/backend/business/post/implement/PostReader.java
+++ b/src/main/java/project/backend/business/post/implement/PostReader.java
@@ -71,18 +71,23 @@ public PostDetailDto readPostDetailWithTags(Long userId,
 
     List<String> tagList = tagReader.readTagNamesByPostId(postDetailServiceRequest.getPostId());
 
-    return PostDetailDto.builder()
-                        .title(postDetail.getTitle())
-                        .content(postDetail.getContent())
-                        .url(postDetail.getUrl())
-                        .tagList(tagList).createdAt(DateTimeManager.convertToStringPattern(
-            postDetail.getCreatedAt(), "yyyy년 MM월 dd일"))
-                        .memoContent(postDetail.getMemo())
-                        .memoCreatedAt(DateTimeManager.convertToStringPattern(
-                            postDetail.getMemoCreatedAt(), "yy.MM.dd"))
-                        .archiveId(postDetail.getArchive().getId())
-                        .archiveName(postDetail.getArchive().getName())
-                        .build();
+    PostDetailDto postDetailDto = PostDetailDto.builder()
+                                               .title(postDetail.getTitle())
+                                               .content(postDetail.getContent())
+                                               .url(postDetail.getUrl())
+                                               .tagList(tagList)
+                                               .createdAt(DateTimeManager.convertToStringPattern(
+                                                   postDetail.getCreatedAt(),
+                                                   "yyyy년 MM월 dd일"))
+                                               .memoContent(postDetail.getMemo())
+                                               .memoCreatedAt(
+                                                   DateTimeManager.convertToStringPattern(
+                                                       postDetail.getMemoCreatedAt(),
+                                                       "yy.MM.dd"))
+                                               .build();
+
+    postDetailDto.setArchive(postDetail.getArchive());
+    return postDetailDto;
   }
 
   public int readActivatePostCountByUserId(Long userId) {
diff --git a/src/main/java/project/backend/business/post/response/dto/PostDetailDto.java b/src/main/java/project/backend/business/post/response/dto/PostDetailDto.java
index dd2c08a..5f664d2 100644
--- a/src/main/java/project/backend/business/post/response/dto/PostDetailDto.java
+++ b/src/main/java/project/backend/business/post/response/dto/PostDetailDto.java
@@ -3,6 +3,7 @@
 import java.util.List;
 import lombok.Builder;
 import lombok.Getter;
+import project.backend.entity.archive.Archive;
 
 @Getter
 @Builder
@@ -12,9 +13,16 @@ public class PostDetailDto {
   private final String content;
   private final String url;
   private final List<String> tagList;
-  private final Long archiveId;
-  private final String archiveName;
+  private Long archiveId;
+  private String archiveName;
   private final String createdAt;
   private final String memoContent;
   private final String memoCreatedAt;
+
+  public void setArchive(Archive archive) {
+    if (archive != null) {
+      this.archiveId = archive.getId();
+      this.archiveName = archive.getName();
+    }
+  }
 }