diff --git a/src/main/java/com/dispose/service/impl/DisposeNodeManagerImpl.java b/src/main/java/com/dispose/service/impl/DisposeNodeManagerImpl.java
index f28c7147..4a89ff7f 100644
--- a/src/main/java/com/dispose/service/impl/DisposeNodeManagerImpl.java
+++ b/src/main/java/com/dispose/service/impl/DisposeNodeManagerImpl.java
@@ -50,6 +50,8 @@ public class DisposeNodeManagerImpl implements DisposeNodeManager {
      */
     @Override
     public void loadDisposeNodeFromDB() {
+        disposeDevMap.clear();
+
         List<DisposeDevice> devList = disposeDeviceMapper.selectAll();
 
         if (devList == null) {
diff --git a/src/test/java/com/dispose/service/DisposeNodeManagerTest.java b/src/test/java/com/dispose/service/DisposeNodeManagerTest.java
index 45c9669e..a7cdc330 100644
--- a/src/test/java/com/dispose/service/DisposeNodeManagerTest.java
+++ b/src/test/java/com/dispose/service/DisposeNodeManagerTest.java
@@ -27,8 +27,6 @@ import org.springframework.transaction.annotation.Transactional;
 @SpringBootTest
 @Slf4j
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
-@Transactional
-@Rollback
 public class DisposeNodeManagerTest extends InitTestEnvironment {
     /**
      * The Used ip addr.
@@ -61,6 +59,7 @@ public class DisposeNodeManagerTest extends InitTestEnvironment {
      */
     @Override
     public void userLogin() {
+        disposeNodeManager.loadDisposeNodeFromDB();
     }
 
     /**
@@ -114,8 +113,6 @@ public class DisposeNodeManagerTest extends InitTestEnvironment {
             Assert.assertEquals(disposeNodeManager.getAllDisposeDevice().size(), 0);
             disposeNodeManager.cleanupDisposeNodeCache();
         }
-
-        disposeNodeManager.loadDisposeNodeFromDB();
     }
 
     @Test
@@ -124,7 +121,5 @@ public class DisposeNodeManagerTest extends InitTestEnvironment {
             ErrorCode ret = disposeNodeManager.delDisposeDeviceByIp(v.getIpAddr());
             Assert.assertEquals(ret, ErrorCode.ERR_OK);
         });
-
-        disposeNodeManager.loadDisposeNodeFromDB();
     }
 }