diff --git a/mh-quartz/src/main/java/com/mh/quartz/task/PushDataToWechatTask.java b/mh-quartz/src/main/java/com/mh/quartz/task/PushDataToWechatTask.java
index 9de73e6..89e314a 100644
--- a/mh-quartz/src/main/java/com/mh/quartz/task/PushDataToWechatTask.java
+++ b/mh-quartz/src/main/java/com/mh/quartz/task/PushDataToWechatTask.java
@@ -117,7 +117,8 @@ public class PushDataToWechatTask {
 
         // 异常原因
         Key4 key4 = new Key4();
-        key4.setValue(alarmRecords2.getContent().substring(0, 20));
+        String content = alarmRecords2.getContent();
+        key4.setValue(content.length() > 20 ? content.substring(0, 20) : content);
         pushMsgEntity.setKey4(key4);
 
         // 发生时间
@@ -158,7 +159,8 @@ public class PushDataToWechatTask {
         pushMsgEntity.setKey3(key3);
 
         Key4 key4 = new Key4();
-        key4.setValue(alarmRecords2.getContent().substring(0, 20));
+        String content = alarmRecords2.getContent();
+        key4.setValue(content.length() > 20 ? content.substring(0, 20) : content);
         pushMsgEntity.setKey4(key4);
 
         Key5 key5 = new Key5();