diff --git a/src/main/resources/vm/common/sha1.vm b/src/main/resources/vm/common/sha1.vm
index 7e2cb74cd..d10fa9f44 100644
--- a/src/main/resources/vm/common/sha1.vm
+++ b/src/main/resources/vm/common/sha1.vm
@@ -1,11 +1,6 @@
 <script src="//cdn.staticfile.org/js-sha1/0.6.0/sha1.min.js"></script>
 <script type="text/javascript">
-    /**
-     *  格式化密码加密
-     * @param data
-     * @param key
-     * @returns {*}
-     */
+    ## 格式化密码加密
     function formatPwd(data, key) {
         var pwd = data[key];
         if (pwd && pwd != "") {
@@ -25,4 +20,45 @@
         }
         return true;
     }
+
+    function checkPasswordStrong(fieldValue) {
+        function checkStrong(sPW) {
+            var Modes = 0;
+            for (i = 0; i < sPW.length; i++) {
+            ## 测试每一个字符的类别并统计一共有多少种模式.
+                Modes |= CharMode(sPW.charCodeAt(i));
+            }
+            return bitTotal(Modes);
+        }
+
+    ## 判断字符类型
+        function CharMode(iN) {
+            if (iN >= 48 && iN <= 57) //数字
+                return 1;
+            if (iN >= 65 && iN <= 90) //大写字母
+                return 2;
+            if (iN >= 97 && iN <= 122) //小写
+                return 4;
+            else
+                return 8; //特殊字符
+        }
+
+    ## 统计字符类型
+        function bitTotal(num) {
+            var modes = 0;
+            for (i = 0; i < 4; i++) {
+                if (num & 1) modes++;
+                num >>>= 1;
+            }
+            return modes;
+        }
+
+
+    ##   密码强度等级说明，字符包括：小写字母、大写字母、数字、特殊字符
+    ## 1---密码包含其中之一
+    ## 2---密码包含其中之二
+    ## 3---密码包含其中之三
+    ## 4---密码包含其中之四
+        return checkStrong(fieldValue) >= 3;
+    }
 </script>
\ No newline at end of file
diff --git a/src/main/resources/vm/index.vm b/src/main/resources/vm/index.vm
index 22dc2549f..78d873fce 100644
--- a/src/main/resources/vm/index.vm
+++ b/src/main/resources/vm/index.vm
@@ -300,6 +300,13 @@
             if (!checkPwd(data.field.confirmPwd)) {
                 return;
             }
+        ##  密码强度
+            #if($user.isSystemUser())
+                if (!checkPasswordStrong(data.field.userPwd)) {
+                    layer.msg("系统管理员密码强度太低");
+                    return false;
+                }
+            #end
             var sendData = formatPwd(data.field, "oldPwd");
             sendData = formatPwd(data.field, "newPwd");
             sendData = formatPwd(data.field, "confirmPwd")
diff --git a/src/main/resources/vm/install.vm b/src/main/resources/vm/install.vm
index 91ca23411..bbd335bc6 100644
--- a/src/main/resources/vm/install.vm
+++ b/src/main/resources/vm/install.vm
@@ -67,7 +67,12 @@
             //
             form.on('submit(from_login)', function (data) {
                 if (!checkPwd(data.field.userPwd)) {
-                    return;
+                    return false;
+                }
+                //  密码强度
+                if (!checkPasswordStrong(data.field.userPwd)) {
+                    layer.msg("系统管理员密码强度太低");
+                    return false;
                 }
                 var sendData = formatPwd(data.field, "userPwd");
                 $.ajax({
diff --git a/src/main/resources/vm/welcome.vm b/src/main/resources/vm/welcome.vm
index 764e75dc5..50e5a79af 100644
--- a/src/main/resources/vm/welcome.vm
+++ b/src/main/resources/vm/welcome.vm
@@ -51,7 +51,7 @@
             width: 100%;
         }
     </style>
-    <script src="//echarts.baidu.com/dist/echarts.js"></script>
+    <script src="//echarts.baidu.com/dist/echarts.js?v=$staticCacheTime"></script>
 </head>
 <body>
 <form action="" class="layui-form" id="form">
