diff --git a/src/main/java/com/hansung/leafly/domain/bookreview/service/BookReviewServiceImpl.java b/src/main/java/com/hansung/leafly/domain/bookreview/service/BookReviewServiceImpl.java
index 32d0ddc..619a3b5 100644
--- a/src/main/java/com/hansung/leafly/domain/bookreview/service/BookReviewServiceImpl.java
+++ b/src/main/java/com/hansung/leafly/domain/bookreview/service/BookReviewServiceImpl.java
@@ -9,6 +9,11 @@
 import com.hansung.leafly.domain.bookreview.repository.BookTagRepository;
 import com.hansung.leafly.domain.bookreview.repository.ReviewImageRepository;
 import com.hansung.leafly.domain.bookreview.web.dto.*;
+import com.hansung.leafly.domain.library.entity.Library;
+import com.hansung.leafly.domain.library.entity.enums.LibraryStatus;
+import com.hansung.leafly.domain.library.repository.LibraryRepository;
+import com.hansung.leafly.domain.library.web.dto.LibraryReq;
+import com.hansung.leafly.domain.library.web.dto.LibraryReqBuilder;
 import com.hansung.leafly.domain.member.entity.Member;
 import com.hansung.leafly.infra.s3.S3Service;
 import com.hansung.leafly.infra.s3.exception.S3RequestFailedException;
@@ -20,6 +25,7 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Optional;
 
 @Service
 @Transactional(readOnly = true)
@@ -29,6 +35,7 @@ public class BookReviewServiceImpl implements BookReviewService {
     private final BookTagRepository bookTagRepository;
     private final ReviewImageRepository reviewImageRepository;
     private final S3Service s3Service;
+    private final LibraryRepository libraryRepository;
 
     @Override
     @Transactional
@@ -41,6 +48,8 @@ public void create(Member member, ReviewReq req) {
 
         List<ReviewImage> images = processImages(req.getImages(), bookReview);
         reviewImageRepository.saveAll(images);
+
+        saveLibraryAsDone(member, req);
     }
 
     @Override
@@ -161,4 +170,21 @@ private List<ReviewImage> processImages(List<MultipartFile> images, BookReview r
         return result;
     }
 
+    private void saveLibraryAsDone(Member member, ReviewReq req) {
+        String isbn = req.getIsbn();
+
+        // 이미 서재에 존재하면 상태만 DONE으로 변경
+        Optional<Library> existing = libraryRepository.findByMemberAndIsbn(member, isbn);
+
+        if (existing.isPresent()) {
+            Library library = existing.get();
+            library.updateStatus(LibraryStatus.DONE); // 상태 업데이트
+            return;
+        }
+
+        // 없으면 새로 추가
+        LibraryReq libraryReq = new LibraryReqBuilder(req).buildDoneReq();
+        Library library = Library.of(member, isbn, libraryReq);
+        libraryRepository.save(library);
+    }
 }
diff --git a/src/main/java/com/hansung/leafly/domain/bookreview/web/dto/ReviewReq.java b/src/main/java/com/hansung/leafly/domain/bookreview/web/dto/ReviewReq.java
index d73e05c..87d00b0 100644
--- a/src/main/java/com/hansung/leafly/domain/bookreview/web/dto/ReviewReq.java
+++ b/src/main/java/com/hansung/leafly/domain/bookreview/web/dto/ReviewReq.java
@@ -38,4 +38,7 @@ public class ReviewReq {
     // 이미지 최대 3개까지
     @Size(max = 3, message = "이미지는 최대 3장까지 업로드 가능합니다.")
     private List<MultipartFile> images;
+
+    @NotNull(message = "isbn을 입력해주세요.")
+    private String isbn;
 }
diff --git a/src/main/java/com/hansung/leafly/domain/library/entity/Library.java b/src/main/java/com/hansung/leafly/domain/library/entity/Library.java
index ae6f6eb..4c573c8 100644
--- a/src/main/java/com/hansung/leafly/domain/library/entity/Library.java
+++ b/src/main/java/com/hansung/leafly/domain/library/entity/Library.java
@@ -51,4 +51,8 @@ public static Library of(Member member, String isbn, LibraryReq req) {
                 .status(req.getStatus())
                 .build();
     }
+
+    public void updateStatus(LibraryStatus status) {
+        this.status = status;
+    }
 }
diff --git a/src/main/java/com/hansung/leafly/domain/library/repository/LibraryRepository.java b/src/main/java/com/hansung/leafly/domain/library/repository/LibraryRepository.java
index 2f00dee..f2cba18 100644
--- a/src/main/java/com/hansung/leafly/domain/library/repository/LibraryRepository.java
+++ b/src/main/java/com/hansung/leafly/domain/library/repository/LibraryRepository.java
@@ -5,8 +5,11 @@
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
+import java.util.Optional;
+
 @Repository
 public interface LibraryRepository extends JpaRepository<Library, Long> {
     boolean existsByMemberAndIsbn(Member member, String isbn13);
 
+    Optional<Library> findByMemberAndIsbn(Member member, String isbn);
 }
diff --git a/src/main/java/com/hansung/leafly/domain/library/web/dto/LibraryReq.java b/src/main/java/com/hansung/leafly/domain/library/web/dto/LibraryReq.java
index 8122d02..1af5e18 100644
--- a/src/main/java/com/hansung/leafly/domain/library/web/dto/LibraryReq.java
+++ b/src/main/java/com/hansung/leafly/domain/library/web/dto/LibraryReq.java
@@ -4,8 +4,10 @@
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 import lombok.Getter;
+import lombok.Setter;
 
 @Getter
+@Setter
 public class LibraryReq {
     @NotBlank(message = "책 제목이 비어 있습니다.")
     private String title;
diff --git a/src/main/java/com/hansung/leafly/domain/library/web/dto/LibraryReqBuilder.java b/src/main/java/com/hansung/leafly/domain/library/web/dto/LibraryReqBuilder.java
new file mode 100644
index 0000000..5450933
--- /dev/null
+++ b/src/main/java/com/hansung/leafly/domain/library/web/dto/LibraryReqBuilder.java
@@ -0,0 +1,22 @@
+package com.hansung.leafly.domain.library.web.dto;
+
+import com.hansung.leafly.domain.bookreview.web.dto.ReviewReq;
+import com.hansung.leafly.domain.library.entity.enums.LibraryStatus;
+
+public class LibraryReqBuilder {
+
+    private final ReviewReq req;
+
+    public LibraryReqBuilder(ReviewReq req) {
+        this.req = req;
+    }
+
+    public LibraryReq buildDoneReq() {
+        LibraryReq libraryReq = new LibraryReq();
+        libraryReq.setTitle(req.getTitle());
+        libraryReq.setAuthor(req.getAuthor());
+        libraryReq.setCover(req.getThumbnail());
+        libraryReq.setStatus(LibraryStatus.DONE);
+        return libraryReq;
+    }
+}
\ No newline at end of file