diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomCompleteDummyTaskCmd.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomCompleteDummyTaskCmd.java
index d204e31d3..67f73de8d 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomCompleteDummyTaskCmd.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomCompleteDummyTaskCmd.java
@@ -13,6 +13,7 @@ import org.flowable.engine.impl.cfg.ProcessEngineConfigurationImpl;
 import org.flowable.engine.impl.util.CommandContextUtil;
 import org.flowable.task.api.Task;
 import org.springframework.util.CollectionUtils;
+import org.springframework.util.StringUtils;
 
 import java.io.Serializable;
 import java.util.List;
@@ -56,8 +57,10 @@ public class CustomCompleteDummyTaskCmd implements Command<Void>, Serializable {
         if (Objects.isNull(task)) {
             throw new WorkflowEngineException(DUMMY_TASK_NOT_EXISTS, processInstanceId, taskId);
         }
-        task.setName(flowNodeName);
-        taskService.saveTask(task);
+        if (StringUtils.hasText(flowNodeName)) {
+            task.setName(flowNodeName);
+            taskService.saveTask(task);
+        }
 
         Authentication.setAuthenticatedUserId("system");
         CustomTaskHelper.addComment(commandContext, task, COMMENT_TYPE_OPERATION_DESC, operationDesc);
diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/BpmnProcessTaskServiceImpl.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/BpmnProcessTaskServiceImpl.java
index cdcd8e40a..13b0597ea 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/BpmnProcessTaskServiceImpl.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/BpmnProcessTaskServiceImpl.java
@@ -655,7 +655,8 @@ public class BpmnProcessTaskServiceImpl implements BpmnProcessTaskService {
     public void completeRobotTask(BpmnRobotTaskCompleteDTO dto) {
         CommandExecutor commandExecutor = processEngineConfiguration.getCommandExecutor();
         commandExecutor.execute(new CustomCompleteDummyTaskCmd(dto.getProcessInstanceId(), dto.getTaskId(),
-                dto.getRobotNode().getFlowNodeName(), dto.getRobotNode().getOperationDesc(), extAxHiTaskInstService));
+                Objects.isNull(dto.getRobotNode()) ? null : dto.getRobotNode().getFlowNodeName(),
+                dto.getRobotNode().getOperationDesc(), extAxHiTaskInstService));
     }
 
     @Override