diff --git a/nacossync-worker/src/main/java/com/alibaba/nacossync/extension/impl/NacosSyncToNacosServiceImpl.java b/nacossync-worker/src/main/java/com/alibaba/nacossync/extension/impl/NacosSyncToNacosServiceImpl.java
index 41147b3..2c956f0 100644
--- a/nacossync-worker/src/main/java/com/alibaba/nacossync/extension/impl/NacosSyncToNacosServiceImpl.java
+++ b/nacossync-worker/src/main/java/com/alibaba/nacossync/extension/impl/NacosSyncToNacosServiceImpl.java
@@ -168,6 +168,7 @@ public boolean delete(TaskDO taskDO) {
             String taskId = taskDO.getTaskId();
             NamingService sourceNamingService = nacosServerHolder.getSourceNamingService(taskId,
                     taskDO.getSourceClusterId());
+            String groupName = getGroupNameOrDefault(taskDO.getGroupName());
             
             int level = clusterAccessService.findClusterLevel(taskDO.getSourceClusterId());
             if ("ALL".equals(taskDO.getServiceName())) {
@@ -177,26 +178,28 @@ public boolean delete(TaskDO taskDO) {
                 }
                 
                 //处理group级别的服务任务删除
-                ListView<String> servicesOfServer = sourceNamingService.getServicesOfServer(0, Integer.MAX_VALUE,
-                        getGroupNameOrDefault(taskDO.getGroupName()));
+                ListView<String> servicesOfServer = sourceNamingService.getServicesOfServer(
+                        0, Integer.MAX_VALUE, groupName);
                 List<String> serviceNames = servicesOfServer.getData();
                 for (String serviceName : serviceNames) {
                     String operationKey = taskId + serviceName;
                     skyWalkerCacheServices.removeFinishedTask(operationKey);
                     allSyncTaskMap.remove(operationKey);
+                    sourceNamingService.unsubscribe(serviceName, groupName, listenerMap.remove(operationKey));
+                    
+                    //popNamingService方法需要传入serviceName属性为实际服务名的TaskDO对象
                     TaskDO task = new TaskDO();
                     BeanUtils.copyProperties(taskDO, task);
                     task.setServiceName(serviceName);
-                    task.setOperationId(taskDO.getTaskId() + serviceName);
+                    task.setOperationId(operationKey);
                     NamingService destNamingService = popNamingService(task);
-                    sourceNamingService.unsubscribe(serviceName, getGroupNameOrDefault(task.getGroupName()),
-                            listenerMap.remove(task.getTaskId() + serviceName));
                     if (Objects.isNull(destNamingService)) {
-                        log.warn("task {} not found NamingService", task.getTaskId() + serviceName);
+                        log.warn("task {} not found NamingService", operationKey);
                         continue;
                     }
-                    List<Instance> sourceInstances = sourceNamingService.getAllInstances(serviceName,
-                            getGroupNameOrDefault(task.getGroupName()), new ArrayList<>(), false);
+                    
+                    List<Instance> sourceInstances = sourceNamingService.getAllInstances(
+                            serviceName, groupName, new ArrayList<>(), false);
                     List<Instance> needDeregisterInstances = new ArrayList<>();
                     for (Instance instance : sourceInstances) {
                         if (needSync(instance.getMetadata(), level, taskDO.getDestClusterId())) {
@@ -206,8 +209,8 @@ public boolean delete(TaskDO taskDO) {
                         }
                     }
                     if (CollectionUtils.isNotEmpty(needDeregisterInstances)) {
-                        doDeregisterInstance(taskDO, destNamingService, serviceName,
-                                getGroupNameOrDefault(task.getGroupName()), needDeregisterInstances);
+                        doDeregisterInstance(taskDO, destNamingService,
+                                serviceName, groupName, needDeregisterInstances);
                     }
                 }
             } else {
@@ -218,29 +221,27 @@ public boolean delete(TaskDO taskDO) {
                     return false;
                 }
                 
-                NamingService destNamingService = popNamingService(taskDO);
                 String serviceName = taskDO.getServiceName();
-                sourceNamingService.unsubscribe(serviceName, getGroupNameOrDefault(taskDO.getGroupName()),
-                        listenerMap.remove(operationId));
+                sourceNamingService.unsubscribe(serviceName, groupName, listenerMap.remove(operationId));
+
+                NamingService destNamingService = popNamingService(taskDO);
                 if (Objects.isNull(destNamingService)) {
-                    log.warn("task {} not found NamingService", taskId + serviceName);
+                    log.warn("task {} not found NamingService", operationId);
                     return false;
                 }
                 
-                List<Instance> sourceInstances = sourceNamingService.getAllInstances(serviceName,
-                        getGroupNameOrDefault(taskDO.getGroupName()), new ArrayList<>(), false);
-                
+                List<Instance> sourceInstances = sourceNamingService.getAllInstances(
+                        serviceName, groupName, new ArrayList<>(), false);
                 List<Instance> needDeregisterInstances = new ArrayList<>();
                 for (Instance instance : sourceInstances) {
-                    if (needSync(instance.getMetadata(), level, taskDO.getDestClusterId())){
+                    if (needSync(instance.getMetadata(), level, taskDO.getDestClusterId())) {
                         removeUnwantedAttrsForNacosRedo(instance);
                         log.debug("需要反注册的实例: {}", instance);
                         needDeregisterInstances.add(instance);
                     }
                 }
                 if (CollectionUtils.isNotEmpty(needDeregisterInstances)) {
-                    doDeregisterInstance(taskDO, destNamingService, serviceName,
-                            getGroupNameOrDefault(taskDO.getGroupName()), needDeregisterInstances);
+                    doDeregisterInstance(taskDO, destNamingService, serviceName, groupName, needDeregisterInstances);
                 }
                 // 移除任务
                 skyWalkerCacheServices.removeFinishedTask(operationId);