diff --git a/src/main/java/com/cisd/tms/modules/mk/service/impl/LmkServiceImpl.java b/src/main/java/com/cisd/tms/modules/mk/service/impl/LmkServiceImpl.java
index c565e9d..650565a 100644
--- a/src/main/java/com/cisd/tms/modules/mk/service/impl/LmkServiceImpl.java
+++ b/src/main/java/com/cisd/tms/modules/mk/service/impl/LmkServiceImpl.java
@@ -85,10 +85,12 @@ public class LmkServiceImpl implements LmkService {
     public void destroyMasterKey() {
         // 销毁后也不能再继续复用上一轮备份材料。
         clearCachedBackupRound();
+        //先删除用户密钥，都则主密钥删除后，设备处于初始状态，无法调用
+        pcieCryptoService.deleteUserKey(USER_KEY_INDEX);
+
         pcieCryptoService.destroyLmk();
         pcieCryptoService.destroyIk(IKEnums.KEY_TYPE_AUTH.getCode());
         pcieCryptoService.destroyIk(IKEnums.KEY_TYPE_DEVICE.getCode());
-        pcieCryptoService.deleteUserKey(USER_KEY_INDEX);
     }
 
     @Override