diff --git a/.ci/script.sh b/.ci/script.sh
index 544564d6c..e1ffdf52d 100755
--- a/.ci/script.sh
+++ b/.ci/script.sh
@@ -77,6 +77,12 @@ elif [ "$LINT" = "vader" ]; then
     echo "\$VIM: \"${VIM}\""
     echo "=================  ${VIM_BIN} version ======================"
     $VIM_BIN --version
+    pip install covimerage
+    pip install codecov
+    python -c 'import os,sys,fcntl; flags = fcntl.fcntl(sys.stdout, fcntl.F_GETFL); fcntl.fcntl(sys.stdout, fcntl.F_SETFL, flags&~os.O_NONBLOCK);'
+    make test_coverage
+    covimerage -vv xml --omit 'build/*'
+    codecov -X search gcov pycov -f coverage.xml
     make test
 elif [ "$LINT" = "jekyll" ]; then
     .ci/build-production
diff --git a/README.cn.md b/README.cn.md
index 21757a0a4..7b1fc36b1 100644
--- a/README.cn.md
+++ b/README.cn.md
@@ -11,6 +11,7 @@
 [![Gitter](https://badges.gitter.im/SpaceVim/SpaceVim.svg)](https://gitter.im/SpaceVim/cn)
 [![Build Status](https://travis-ci.org/SpaceVim/SpaceVim.svg?branch=master)](https://travis-ci.org/SpaceVim/SpaceVim)
 [![Build status](https://ci.appveyor.com/api/projects/status/eh3t5oph70abp665/branch/master?svg=true)](https://ci.appveyor.com/project/wsdjeg/spacevim/branch/master)
+[![codecov](https://codecov.io/gh/SpaceVim/SpaceVim/branch/dev/graph/badge.svg)](https://codecov.io/gh/SpaceVim/SpaceVim/branch/master)
 [![Version](https://img.shields.io/badge/version-1.7.0--dev-8700FF.svg)](https://github.com/SpaceVim/SpaceVim/releases)
 [![GPLv3 License](https://img.shields.io/badge/license-GPLv3-blue.svg)](https://github.com/SpaceVim/SpaceVim/blob/master/LICENSE)
 
diff --git a/README.md b/README.md
index fc3e0b68d..468f6ca36 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@
 
 [![Build Status](https://travis-ci.org/SpaceVim/SpaceVim.svg?branch=master)](https://travis-ci.org/SpaceVim/SpaceVim)
 [![Build status](https://ci.appveyor.com/api/projects/status/eh3t5oph70abp665/branch/master?svg=true)](https://ci.appveyor.com/project/wsdjeg/spacevim/branch/master)
+[![codecov](https://codecov.io/gh/SpaceVim/SpaceVim/branch/dev/graph/badge.svg)](https://codecov.io/gh/SpaceVim/SpaceVim/branch/master)
 [![Docker Build Status](https://img.shields.io/docker/build/spacevim/spacevim.svg)](https://hub.docker.com/r/spacevim/spacevim/)
 ![Version](https://img.shields.io/badge/version-1.7.0--dev-8700FF.svg)
 [![GPLv3 License](https://img.shields.io/badge/license-GPLv3-blue.svg)](LICENSE)
diff --git a/docs/cn/index.md b/docs/cn/index.md
index 155ae1363..5f67ed8a2 100644
--- a/docs/cn/index.md
+++ b/docs/cn/index.md
@@ -7,6 +7,7 @@ lang: zh
 [![Gitter](https://badges.gitter.im/SpaceVim/SpaceVim.svg)](https://gitter.im/SpaceVim/cn)
 [![Build Status](https://travis-ci.org/SpaceVim/SpaceVim.svg?branch=master)](https://travis-ci.org/SpaceVim/SpaceVim)
 [![Build status](https://ci.appveyor.com/api/projects/status/eh3t5oph70abp665/branch/master?svg=true)](https://ci.appveyor.com/project/wsdjeg/spacevim/branch/master)
+[![codecov](https://codecov.io/gh/SpaceVim/SpaceVim/branch/dev/graph/badge.svg)](https://codecov.io/gh/SpaceVim/SpaceVim/branch/master)
 [![Version](https://img.shields.io/badge/version-1.7.0--dev-8700FF.svg)](https://github.com/SpaceVim/SpaceVim/releases)
 [![GPLv3 License](https://img.shields.io/badge/license-GPLv3-blue.svg)](https://github.com/SpaceVim/SpaceVim/blob/master/LICENSE)
 
diff --git a/docs/index.md b/docs/index.md
index b4214626d..047edf336 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -6,6 +6,7 @@ description: "SpaceVim is a community-driven vim distribution that seeks to prov
 [![Gitter](https://badges.gitter.im/SpaceVim/SpaceVim.svg)](https://gitter.im/SpaceVim/SpaceVim)
 [![Build Status](https://travis-ci.org/SpaceVim/SpaceVim.svg?branch=master)](https://travis-ci.org/SpaceVim/SpaceVim)
 [![Build status](https://ci.appveyor.com/api/projects/status/eh3t5oph70abp665/branch/master?svg=true)](https://ci.appveyor.com/project/wsdjeg/spacevim/branch/master)
+[![codecov](https://codecov.io/gh/SpaceVim/SpaceVim/branch/dev/graph/badge.svg)](https://codecov.io/gh/SpaceVim/SpaceVim/branch/master)
 [![Version](https://img.shields.io/badge/version-1.7.0--dev-8700FF.svg)](https://github.com/SpaceVim/SpaceVim/releases)
 [![GPLv3 License](https://img.shields.io/badge/license-GPLv3-blue.svg)](https://github.com/SpaceVim/SpaceVim/blob/master/LICENSE)