diff --git a/README.md b/README.md
index 21269aeceddadd0ac11325098b409b3779016a05..4dd9675ecbd70b45166d3b6411461e4f9f7f226f 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 ![Milvuslogo](https://github.com/milvus-io/docs/blob/master/assets/milvus_logo.png)
 
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/c4bb2ccfb51b47f99e43bfd1705edd95)](https://app.codacy.com/gh/milvus-io/milvus?utm_source=github.com&utm_medium=referral&utm_content=milvus-io/milvus&utm_campaign=Badge_Grade_Dashboard)
 [![Slack](https://img.shields.io/badge/Join-Slack-orange)](https://join.slack.com/t/milvusio/shared_invite/enQtNzY1OTQ0NDI3NjMzLWNmYmM1NmNjOTQ5MGI5NDhhYmRhMGU5M2NhNzhhMDMzY2MzNDdlYjM5ODQ5MmE3ODFlYzU3YjJkNmVlNDQ2ZTk)
 ![LICENSE](https://img.shields.io/badge/license-Apache--2.0-brightgreen)
 ![Language](https://img.shields.io/badge/language-C%2B%2B-blue)