diff --git a/README.md b/README.md
index 4eb01532a3..f1669bc89f 100644
--- a/README.md
+++ b/README.md
@@ -117,6 +117,8 @@ _USRSTUDIOPDLL
     CMake 推荐 3.10.2
     NDK 推荐 20.1
   ```
+  
+  如果报缺少Ninja, 从https://github.com/ninja-build/ninja/releases下载， 拷贝Ninja.exe到Cmake的bin目录即可
 
 #### ios
   确保最新版xcode已安装