diff --git a/examples/vision/detection/nanodet_plus/README.md b/examples/vision/detection/nanodet_plus/README.md
index 94e73804c..703c31017 100644
--- a/examples/vision/detection/nanodet_plus/README.md
+++ b/examples/vision/detection/nanodet_plus/README.md
@@ -2,7 +2,7 @@
 
 ## 模型版本说明
 
-- NanoDetPlus部署实现来自[NanoDetPlus v1.0.0-alpha-1](https://github.com/RangiLyu/nanodet/tree/v1.0.0-alpha-1) ，基于coco的[预训练模型](https://github.com/RangiLyu/nanodet/releases/tag/v1.0.0-alpha-1)。
+- NanoDetPlus部署实现来自[NanoDetPlus v1.0.0-alpha-1](https://github.com/RangiLyu/nanodet/tree/v1.0.0-alpha-1) 代码分支，基于coco的[预训练模型](https://github.com/RangiLyu/nanodet/releases/tag/v1.0.0-alpha-1)。
 
   - （1）[预训练模型](https://github.com/RangiLyu/nanodet/releases/tag/v1.0.0-alpha-1)的*.onnx可直接进行部署；
   - （2）自己训练的模型，导出ONNX模型后，按照下方[详细部署教程](#详细部署文档)完成部署。