diff --git a/README.md b/README.md
index 8273da162..9c922675f 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 ![](https://img.shields.io/badge/language-java-orange.svg)
 [![star this repo](http://githubbadges.com/star.svg?user=vesoft-inc&repo=nebula-java&style=default)](https://github.com/vesoft-inc/nebula-java)
 [![fork this repo](http://githubbadges.com/fork.svg?user=vesoft-inc&repo=nebula-java&style=default)](https://github.com/vesoft-inc/nebula-java/fork)
+[![codecov](https://codecov.io/gh/vesoft-inc/nebula-java/branch/master/graph/badge.svg?token=WQVAG6VMMQ)](https://codecov.io/gh/vesoft-inc/nebula-java)
 
 Nebula Java is a Java client for developers to connect their projects to Nebula Graph.