diff --git a/README.md b/README.md
index 4a1151dbf80bf67ba9cb6d1d10e97390f89ff20c..3cb1b34c252584031238abdcd4b8bd7bb270bd9c 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,8 @@
 ![Release](https://img.shields.io/badge/release-v0.5.1-yellowgreen)
 ![Release_date](https://img.shields.io/badge/release%20date-November-yellowgreen)
 
+[![codecov](https://codecov.io/gh/milvus-io/milvus/branch/master/graph/badge.svg)](https://codecov.io/gh/milvus-io/milvus)
+
 [中文版](README_CN.md) 
 
 ## What is Milvus
diff --git a/README_CN.md b/README_CN.md
index 8f4d4b05aa45080ee6eff8a058ebcbfb23c282a8..5daef16d24b60967b17cb2a41b2dc79f220b3f21 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -7,6 +7,8 @@
 ![Release](https://img.shields.io/badge/release-v0.5.0-orange)
 ![Release_date](https://img.shields.io/badge/release_date-October-yellowgreen)
 
+[![codecov](https://codecov.io/gh/milvus-io/milvus/branch/master/graph/badge.svg)](https://codecov.io/gh/milvus-io/milvus)
+
 - [Slack 频道](https://join.slack.com/t/milvusio/shared_invite/enQtNzY1OTQ0NDI3NjMzLWNmYmM1NmNjOTQ5MGI5NDhhYmRhMGU5M2NhNzhhMDMzY2MzNDdlYjM5ODQ5MmE3ODFlYzU3YjJkNmVlNDQ2ZTk)
 - [Twitter](https://twitter.com/milvusio)
 - [Facebook](https://www.facebook.com/io.milvus.5)