diff --git a/README.md b/README.md
index f4d585a..fb4219c 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 Evaluation tools for Retrieval-augmented Generation (RAG) methods.
 
+[![codecov](https://codecov.io/gh/gomate-community/rageval/graph/badge.svg?token=AH4DNR46HL)](https://codecov.io/gh/gomate-community/rageval)
+
 Rageval is a tool that helps you evaluate RAG system. The evaluation consists of six sub-tasks, including query rewriting, document ranking, information compression, evidence verify, answer generating, and result validating.
 
 
@@ -14,4 +16,4 @@ git clone https://github.com/Wenshansilvia/rageval.git
 
 ```
 git install ...
-```
\ No newline at end of file
+```