diff --git a/docs/WechatTenpayV3/Advanced_ModelDefinition.md b/docs/WechatTenpayV3/Advanced_ModelDefinition.md
index 99d11c71..08f34252 100644
--- a/docs/WechatTenpayV3/Advanced_ModelDefinition.md
+++ b/docs/WechatTenpayV3/Advanced_ModelDefinition.md
@@ -370,6 +370,8 @@
 
         -   商户上传反馈图片：`UploadMerchantServiceImage`
 
+        -   下载图片：`DownloadMerchantServiceImage`
+
 -   其他能力
 
     -   图片上传：`UploadMerchantMediaImage`
@@ -880,6 +882,8 @@
 
         -   商户上传反馈图片：`UploadMerchantServiceImage`
 
+        -   下载图片：`DownloadMerchantServiceImage`
+
 -   其他能力
 
     -   图片上传：`UploadMerchantMediaImage`