diff --git a/iot-common-thing/src/main/java/cc/iotkit/common/thing/ThingService.java b/iot-common-thing/src/main/java/cc/iotkit/common/thing/ThingService.java
index 01f0a22..9b3df87 100755
--- a/iot-common-thing/src/main/java/cc/iotkit/common/thing/ThingService.java
+++ b/iot-common-thing/src/main/java/cc/iotkit/common/thing/ThingService.java
@@ -41,6 +41,9 @@ public class ThingService<T> {
 
     public static final String TYPE_OTA = "ota";
 
+    public static final String TYPE_CONFIG = "config";
+
+
     private String mid;
 
     private String productKey;