diff --git a/README.md b/README.md
index a1fd5bf64617a761a59f4bd683e203bc9fa264ab..4eeeec6e10e4e7e738ee5ab35f3e2306f6a513e4 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 #ucoin-python-api
-[![Build Status](https://travis-ci.org/ucoin-io/ucoin-python-api.svg)](https://travis-ci.org/ucoin-io/ucoin-python-api)
+[![Build Status](https://travis-ci.org/ucoin-io/ucoin-python-api.svg)](https://travis-ci.org/ucoin-io/ucoin-python-api) [![Coverage Status](https://coveralls.io/repos/ucoin-io/ucoin-python-api/badge.svg?branch=master&service=github)](https://coveralls.io/github/ucoin-io/ucoin-python-api?branch=master)
 
 A python implementation of [uCoin](https://github.com/ucoin-io/ucoin) API