diff --git a/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo_config.h b/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo_config.h
index 7a3d2cc3..a6887e4b 100644
--- a/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo_config.h
+++ b/examples/sensor_e53_ia1_e2e_demo/e53_ia1_e2e_demo_config.h
@@ -7,6 +7,6 @@
 #define MQTT_USR_NAME           "U1BZWHF7F9dev_01;12010126;O3I57;1611533066"
 #define MQTT_PASSWORD           "6ebcf20c9f7f725b5bcf18a85cc7a49479f489eea65946f92ba18a51a135c89e;hmacsha256"
 #define MQTT_SUBSCRIBE_TOPIC    "U1BZWHF7F9/dev_01/data"
-#define MQTT_PUBLISH_TOPIC      "$shadow/operation/U1BZWHF7F9/dev_01"
+#define MQTT_PUBLISH_TOPIC      "$shadow/operation/U1BZWHF7F9/dev_01" // $shadow/operation/{MQTT_PRODUCT_ID}/{MQTT_DEV_NAME}
 
 #endif
diff --git a/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/README.md b/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/README.md
index 93c7a088..9ce07efb 100644
--- a/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/README.md
+++ b/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/README.md
@@ -1,4 +1,28 @@
-### 小程序云开发DEMO
-1. 说明
-本示例小程序配合TencentOS_tiny开发板智慧农业传感器扩展板使用
-TencentOS-tiny/examples/sensor_e53_ia1_e2e_demo
+### 小程序云开发DEMO-智慧农业
+
+本示例小程序配合 TencentOS_tiny开发板 + 智慧农业传感器扩展板(E53-IA1) 使用
+
++ 设备端
+  + 示例代码路径
+  TencentOS-tiny/examples/sensor_e53_ia1_e2e_demo
+
+  + 配置信息 e53_ia1_e2e_demo_config.h
+```c
+#define MQTT_PRODUCT_ID         "U1BZWHF7F9"
+#define MQTT_DEV_NAME           "dev_01"
+#define MQTT_CLIENT_ID          "U1BZWHF7F9dev_01"
+#define MQTT_USR_NAME           "U1BZWHF7F9dev_01;12010126;O3I57;1611533066"
+#define MQTT_PASSWORD           "6ebcf20c9f7f725b5bcf18a85cc7a49479f489eea65946f92ba18a51a135c89e;hmacsha256"
+#define MQTT_SUBSCRIBE_TOPIC    "U1BZWHF7F9/dev_01/data"
+#define MQTT_PUBLISH_TOPIC      "$shadow/operation/U1BZWHF7F9/dev_01" // $shadow/operation/{MQTT_PRODUCT_ID}/{MQTT_DEV_NAME}
+```
+  在 腾讯云控制台-物联网通信-产品-设备-设备信息-设备密钥中 获取
+
+  ![设备密钥](./miniprogram/images/mp_iothub_secret.png)
+
++ 云开发
+  + 云函数说明
+    + iothub-shadow-query 调用接口：物联网通信-设备影子相关接口-获取设备影子
+    + iothub-publish 调用接口：物联网通信-消息相关接口-发布消息
+  + 云函数开发指引参考：
+    + [doc/17.Mini_Program_Quick_Start.md](https://github.com/Tencent/TencentOS-tiny/blob/master/doc/17.Mini_Program_Quick_Start.md) - 云开发方式（云函数） 
\ No newline at end of file
diff --git a/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/cloudfunctions/iothub-publish/index.js b/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/cloudfunctions/iothub-publish/index.js
index 298668c9..8ca1c66d 100644
--- a/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/cloudfunctions/iothub-publish/index.js
+++ b/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/cloudfunctions/iothub-publish/index.js
@@ -7,7 +7,7 @@ const Credential = tencentcloud.common.Credential;
 const ClientProfile = tencentcloud.common.ClientProfile;
 const HttpProfile = tencentcloud.common.HttpProfile;
 
-let cred = new Credential("AKIDxZ2LTTi84eaR3OfS8hnfxd4JHzQatFpF", "UigMrA9rJXUCeoiBQP8dsJuJ6sYzmNjs");
+let cred = new Credential("AKIDDDzjIeENdhosOg9T0LRXabO0B7pHhzQe", "f6IqCUirpeF1gLn3f0IWosjOqjOyTq2r");
 let httpProfile = new HttpProfile();
 httpProfile.endpoint = "iotcloud.tencentcloudapi.com";
 let clientProfile = new ClientProfile();
diff --git a/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/cloudfunctions/iothub-shadow-query/index.js b/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/cloudfunctions/iothub-shadow-query/index.js
index 4a7dc6b8..33a93865 100644
--- a/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/cloudfunctions/iothub-shadow-query/index.js
+++ b/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/cloudfunctions/iothub-shadow-query/index.js
@@ -7,7 +7,7 @@ const Credential = tencentcloud.common.Credential;
 const ClientProfile = tencentcloud.common.ClientProfile;
 const HttpProfile = tencentcloud.common.HttpProfile;
 
-let cred = new Credential("AKIDxZ2LTTi84eaR3OfS8hnfxd4JHzQatFpF", "UigMrA9rJXUCeoiBQP8dsJuJ6sYzmNjs");
+let cred = new Credential("AKIDDDzjIeENdhosOg9T0LRXabO0B7pHhzQe", "f6IqCUirpeF1gLn3f0IWosjOqjOyTq2r");
 let httpProfile = new HttpProfile();
 httpProfile.endpoint = "iotcloud.tencentcloudapi.com";
 let clientProfile = new ClientProfile();
diff --git a/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/miniprogram/images/mp_iothub_secret.png b/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/miniprogram/images/mp_iothub_secret.png
new file mode 100644
index 00000000..f8315ec9
Binary files /dev/null and b/tools/Mini_Program/qcloud_iothub_mp_cloudfunctions_farmai/miniprogram/images/mp_iothub_secret.png differ