diff --git a/Falcon.SugarApi/IServiceCollectionExtend.cs b/Falcon.SugarApi/IServiceCollectionExtend.cs
index f28e8f2..f935323 100644
--- a/Falcon.SugarApi/IServiceCollectionExtend.cs
+++ b/Falcon.SugarApi/IServiceCollectionExtend.cs
@@ -7,6 +7,9 @@ using System;
 
 namespace Falcon.SugarApi
 {
+    /// <summary>
+    /// 系统服务集合扩展
+    /// </summary>
     public static class IServiceCollectionExtend
     {
         /// <summary>