diff --git a/agri-framework/src/main/java/com/agri/framework/manager/MqttAutoOffManager.java b/agri-framework/src/main/java/com/agri/framework/manager/MqttAutoOffManager.java
index a62d016..6aed93d 100644
--- a/agri-framework/src/main/java/com/agri/framework/manager/MqttAutoOffManager.java
+++ b/agri-framework/src/main/java/com/agri/framework/manager/MqttAutoOffManager.java
@@ -237,9 +237,10 @@ public class MqttAutoOffManager {
 
         // 设备每10秒上报的状态包：{"jm1k":0/1,...} 顶层字段直接取
         Integer current = null;
+        String key = getKey(funcType);
         try {
-            if (latestObj.containsKey(funcType)) {
-                current = latestObj.getIntValue(funcType);
+            if (latestObj.containsKey(key)) {
+                current = latestObj.getIntValue(key);
             }
         } catch (Exception ignore) {
             skipReason = "【自动关任务】最新状态功能码获取失败";
@@ -353,4 +354,14 @@ public class MqttAutoOffManager {
         return json;
     }
 
+
+    public String getKey(String funcType) {
+        // 边界判断：避免空指针异常和字符串长度不足的异常
+        if (funcType == null || funcType.length() <= 1) {
+            return funcType == null ? null : "";
+        }
+
+        // 截取：从索引0开始，到倒数第二位结束（substring的结束索引是开区间，不包含自身）
+        return funcType.substring(0, funcType.length() - 1);
+    }
 }
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