diff --git a/workflow-engine-spring-boot-starter/src/main/java/cn/axzo/workflow/starter/mq/monitor/console/WorkflowEngineStarterMQMonitorController.java b/workflow-engine-spring-boot-starter/src/main/java/cn/axzo/workflow/starter/mq/monitor/console/WorkflowEngineStarterMQMonitorController.java
index d1689bd5d..733e17039 100644
--- a/workflow-engine-spring-boot-starter/src/main/java/cn/axzo/workflow/starter/mq/monitor/console/WorkflowEngineStarterMQMonitorController.java
+++ b/workflow-engine-spring-boot-starter/src/main/java/cn/axzo/workflow/starter/mq/monitor/console/WorkflowEngineStarterMQMonitorController.java
@@ -17,6 +17,7 @@ import org.springframework.web.bind.annotation.RestController;
 import javax.annotation.Resource;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Objects;
 
 import static cn.axzo.workflow.starter.StarterRPCInvokeMQConfiguration.DEFAULT_EVENT;
 import static cn.axzo.workflow.starter.common.constant.StarterConstants.MQ_GID_NAME_SEGMENT;
@@ -37,7 +38,7 @@ public class WorkflowEngineStarterMQMonitorController {
     @Resource
     private ObjectProvider<DefaultMQAdminExt> mqAdminExtObjectProvider;
     @Resource
-    private WorkflowEngineStarterDefaultMQMonitor monitor;
+    private ObjectProvider<WorkflowEngineStarterDefaultMQMonitor> monitorObjectProvider;
     @Resource
     private Environment environment;
     @Value("${spring.application.name}")
@@ -82,6 +83,10 @@ public class WorkflowEngineStarterMQMonitorController {
      */
     @GetMapping("/m/set")
     public CommonResponse<String> changeMonitorState(@RequestParam("status") Boolean status) {
+        WorkflowEngineStarterDefaultMQMonitor monitor = monitorObjectProvider.getIfAvailable();
+        if (Objects.isNull(monitor)) {
+            return CommonResponse.success("未开启·死信队列·的监控，如需，请设置 workflow.engine.starter.enableDlqMonitor = true 后再重试！");
+        }
         if (status) {
             if (!monitor.isRunning()) {
                 monitor.start();