diff --git a/app/data/view/user_discount/form.html b/app/data/view/user_discount/form.html
index 883ee079d..69cf7e56c 100644
--- a/app/data/view/user_discount/form.html
+++ b/app/data/view/user_discount/form.html
@@ -14,7 +14,7 @@
                 <thead>
                 <tr>
                     <th class="text-left">会员级别</th>
-                    <th class="text-right" style="width:150px">原价比例</th>
+                    <th class="text-right" style="width:150px">原价比例 ( 0% - 100% )</th>
                 </tr>
                 </thead>
                 <tbody>
@@ -26,7 +26,7 @@
                     <td class="nowrap padding-0">
                         <label>
                             {php} $key = "_level_" . $level['number']; {/php}
-                            <input name="_level_{$level.number}" data-blur-number="4" value="{$vo[$key]??'100.0000'}" placeholder="请输入用户级别折扣"> %
+                            <input name="_level_{$level.number}" data-blur-number="4" data-value-max="100" data-value-min="0" value="{$vo[$key]??'100.0000'}" placeholder="请输入用户级别折扣"> %
                         </label>
                     </td>
                 </tr>
diff --git a/public/static/admin.js b/public/static/admin.js
index 82b52e23d..2e8157a6a 100644
--- a/public/static/admin.js
+++ b/public/static/admin.js
@@ -713,14 +713,20 @@ $(function () {
 
     /*! 表单元素失去焦点时数字 */
     $body.on('blur', '[data-blur-number]', function () {
+        var min = this.dataset.valueMin;
+        var max = this.dataset.valueMax;
+        var value = parseFloat(this.value) || 0;
         var fiexd = parseInt(this.dataset.blurNumber || 0);
-        this.value = (parseFloat(this.value) || 0).toFixed(fiexd);
+        if (typeof min !== 'undefined' && value < min) value = min;
+        if (typeof max !== 'undefined' && value > max) value = max;
+        this.value = parseFloat(value).toFixed(fiexd);
     });
 
     /*! 注册 data-href 事件行为 */
     $body.on('click', '[data-href]', function () {
-        var href = this.dataset.href;
-        if (href && href.indexOf('#') !== 0) location.href = href;
+        if (this.dataset.href && this.dataset.href.indexOf('#') !== 0) {
+            location.href = this.dataset.href;
+        }
     });
 
     /*! 注册 data-iframe 事件行为 */