diff --git a/team1/src/main/java/com/example/demo/service/ReturnService.java b/team1/src/main/java/com/example/demo/service/ReturnService.java
index abefb36..5e52673 100644
--- a/team1/src/main/java/com/example/demo/service/ReturnService.java
+++ b/team1/src/main/java/com/example/demo/service/ReturnService.java
@@ -10,6 +10,7 @@ import org.springframework.stereotype.Service;
 
 import com.example.demo.entity.Book_collectionEntity;
 import com.example.demo.entity.Borrow_booksEntity;
+import com.example.demo.form.LendingForm;
 import com.example.demo.form.ReturnForm;
 import com.example.demo.form.SearchConditionBookForm;
 import com.example.demo.model.LeadingListModel;
@@ -138,4 +139,20 @@ public class ReturnService {
 
 	}
 
-}
+	//書籍貸出申請機能
+	public void executeLending(LendingForm form, int idEmployee) {
+		var book_collection = book_CollectionRepository.findById(form.getId_book());//更新したい本のEntityを取得
+		book_collection.get().setFlgLending('1');//フラグだけ書き換え
+		book_CollectionRepository.save(book_collection.get());
+
+		Borrow_booksEntity borrow = new Borrow_booksEntity();//空の申請レコード
+		borrow.setIdApproval(idEmployee);//申請者ID
+		borrow.setIdBook(form.getId_book());//蔵書ID
+		borrow.setDateRequest(new Date());//申請日	
+		borrow.setStatus('1');//ステータスを承認待ちに
+		borrow.setIdUpdate(idEmployee);//更新者ID
+		borrow.setDateUpdate(new Date());//更新日
+
+		borrowRepository.save(borrow);
+	}
+}
\ No newline at end of file