diff --git a/Casks/thunderbird-cn.rb b/Casks/thunderbird-cn.rb
new file mode 100644
index 000000000..ce71bc4a4
--- /dev/null
+++ b/Casks/thunderbird-cn.rb
@@ -0,0 +1,7 @@
+class ThunderbirdCn < Cask
+  version '31.0'
+  sha256 'a3b9b3e2684ab8faed71606a7f8d76257bf8065518294ccd96b705201c14eb80'
+  url "http://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/#{version}/mac/zh-CN/Thunderbird%20#{version}.dmg"
+  homepage 'https://www.mozilla.org/zh-CN/thunderbird/'
+  link 'Thunderbird.app'
+end