diff --git a/src/main/java/org/ntlab/citrusserver/repositories/ScheduleManager.java b/src/main/java/org/ntlab/citrusserver/repositories/ScheduleManager.java
index 076a591..2b2dca2 100644
--- a/src/main/java/org/ntlab/citrusserver/repositories/ScheduleManager.java
+++ b/src/main/java/org/ntlab/citrusserver/repositories/ScheduleManager.java
@@ -7,10 +7,11 @@
 import org.springframework.stereotype.Repository;
 
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Set;
 
 @Repository
-public class ScheduleManager {
+public class ScheduleManager implements IBookListener{
 
     private final BookManager bookManager;
 
@@ -19,6 +20,7 @@
     @Autowired
     public ScheduleManager(BookManager bookManager) {
         this.bookManager = bookManager;
+        this.bookManager.addListener(this);
     }
 
     //管理
@@ -127,4 +129,25 @@
             }
         }
     }
+
+    @Override
+    public void bookChanged(Account account, Book book) {
+
+    }
+
+    @Override
+    public void bookDeleted(Account accountin, Book book) {
+        String account = accountin.getId();
+        for(int year : schedules.get(account).keySet()){
+            for (int month : schedules.get(account).get(year).keySet()){
+                for(int day : schedules.get(account).get(year).get(month).keySet()){
+                    for (int scheduleId : schedules.get(account).get(year).get(month).get(day).keySet()){
+                        if(schedules.get(account).get(year).get(month).get(day).get(scheduleId).getBookId().equals(book.getBookId())){
+                            schedules.get(account).get(year).get(month).get(day).get(scheduleId).setBookId(0);
+                        }
+                    }
+                }
+            }
+        }
+    }
 }