diff --git a/fys-admin/src/main/java/com/fuyuanshen/global/mqtt/rule/xinghan/XinghanDeviceDataRule.java b/fys-admin/src/main/java/com/fuyuanshen/global/mqtt/rule/xinghan/XinghanDeviceDataRule.java
index 17dce0ed..b2e89a4c 100644
--- a/fys-admin/src/main/java/com/fuyuanshen/global/mqtt/rule/xinghan/XinghanDeviceDataRule.java
+++ b/fys-admin/src/main/java/com/fuyuanshen/global/mqtt/rule/xinghan/XinghanDeviceDataRule.java
@@ -186,6 +186,9 @@ public class XinghanDeviceDataRule implements MqttMessageRule {
      */
     private DeviceAlarmBo createAlarmBo(String deviceImei, AlarmType type) {
         Device device = deviceService.selectDeviceByImei(deviceImei);
+        if (device == null) {
+            return null;
+        }
         DeviceAlarmBo bo = new DeviceAlarmBo();
         bo.setDeviceId(device.getId());
         bo.setDeviceImei(deviceImei);