diff --git a/examples/vision/detection/yolov7end2end_trt/cpp/README.md b/examples/vision/detection/yolov7end2end_trt/cpp/README.md
index b7e725a1d..b9d9318df 100644
--- a/examples/vision/detection/yolov7end2end_trt/cpp/README.md
+++ b/examples/vision/detection/yolov7end2end_trt/cpp/README.md
@@ -86,3 +86,4 @@ YOLOv7End2EndTRT 模型加载和初始化，其中model_file为导出的ONNX模
 - [模型介绍](../../)
 - [Python部署](../python)
 - [视觉模型预测结果](../../../../../docs/api/vision_results/)
+- [如何切换模型推理后端引擎](../../../../../docs/runtime/how_to_change_backend.md)