diff --git a/src/modules/laydate.js b/src/modules/laydate.js
index e44c3a5b..78d78b69 100644
--- a/src/modules/laydate.js
+++ b/src/modules/laydate.js
@@ -188,6 +188,9 @@ layui.define(['lay', 'i18n'], function(exports) {
     if (options.lang === 'cn') {
       options.lang = zhCN;
     }
+    if(!options.lang){
+      options.lang = i18n.config.locale;
+    }
     var locale = options.lang || i18n.config.locale;
 
     return {