diff --git a/das/src/main/java/com/das/modules/cache/service/impl/EquipmentCacheImpl.java b/das/src/main/java/com/das/modules/cache/service/impl/EquipmentCacheImpl.java
index ae56071e..5f7e9d51 100644
--- a/das/src/main/java/com/das/modules/cache/service/impl/EquipmentCacheImpl.java
+++ b/das/src/main/java/com/das/modules/cache/service/impl/EquipmentCacheImpl.java
@@ -5,6 +5,7 @@ import com.das.modules.cache.service.EquipmentCache;
 import com.das.modules.equipment.entity.SysEquipment;
 import com.das.modules.equipment.mapper.SysEquipmentMapper;
 import jakarta.annotation.PostConstruct;
+import jakarta.annotation.PreDestroy;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -51,6 +52,7 @@ public class EquipmentCacheImpl implements EquipmentCache {
     /**
      * 释放设备缓存信息
      */
+    @PreDestroy
     private void freeDeviceInfoCaches() {
         deviceInfoCaches.clear();
         deviceCodeIndex.clear();