diff --git a/app/data/controller/base/Upgrade.php b/app/data/controller/base/Upgrade.php
index badf84688..2514d81f5 100644
--- a/app/data/controller/base/Upgrade.php
+++ b/app/data/controller/base/Upgrade.php
@@ -47,6 +47,7 @@ class Upgrade extends Controller
      */
     public function add()
     {
+        $this->max = BaseUserUpgrade::maxNumber() + 1;
         BaseUserUpgrade::mForm('form');
     }
 
@@ -56,6 +57,7 @@ class Upgrade extends Controller
      */
     public function edit()
     {
+        $this->max = BaseUserUpgrade::maxNumber();
         BaseUserUpgrade::mForm('form');
     }
 
@@ -67,9 +69,7 @@ class Upgrade extends Controller
     {
         if ($this->request->isGet()) {
             $this->prizes = RebateService::PRIZES;
-            if (!isset($vo['number'])) {
-                $vo['number'] = BaseUserUpgrade::mk()->order('number desc')->value('number', -1) + 1;
-            }
+            $vo['number'] = $vo['number'] ?? BaseUserUpgrade::maxNumber();
             $vo['rebate_rule'] = str2arr($vo['rebate_rule'] ?? '');
         } else {
             $vo['utime'] = time();
@@ -108,7 +108,7 @@ class Upgrade extends Controller
                 $order = 'number asc,utime desc';
             }
             foreach (BaseUserUpgrade::mk()->order($order)->select() as $number => $upgrade) {
-                $upgrade->save(['number' => $number]);
+                $upgrade->save(['number' => $number + 1]);
             }
         }
     }
diff --git a/app/data/model/BaseUserUpgrade.php b/app/data/model/BaseUserUpgrade.php
index 7d430c3b3..b139bb03c 100644
--- a/app/data/model/BaseUserUpgrade.php
+++ b/app/data/model/BaseUserUpgrade.php
@@ -11,5 +11,36 @@ use think\admin\Model;
  */
 class BaseUserUpgrade extends Model
 {
+    /**
+     * 获取用户等级
+     * @return array
+     * @throws \think\db\exception\DataNotFoundException
+     * @throws \think\db\exception\DbException
+     * @throws \think\db\exception\ModelNotFoundException
+     */
+    public static function items(): array
+    {
+        return static::mk()->where(['status' => 1])
+            ->hidden(['id', 'utime', 'status', 'create_at'])
+            ->order('number asc')->select()->toArray();
+    }
 
+    /**
+     * 获取最大级别数
+     * @return int
+     */
+    public static function maxNumber(): int
+    {
+        return static::mk()->max('number', 0) + 1;
+    }
+
+    /**
+     * 格式化创建时间
+     * @param string $value
+     * @return string
+     */
+    public function getCreateAtAttr(string $value): string
+    {
+        return format_datetime($value);
+    }
 }
\ No newline at end of file
diff --git a/app/data/view/base/upgrade/form.html b/app/data/view/base/upgrade/form.html
index be5f7a784..4cfa2d34e 100644
--- a/app/data/view/base/upgrade/form.html
+++ b/app/data/view/base/upgrade/form.html
@@ -23,7 +23,7 @@
                 <div class="layui-col-xs3 block relative">
                     <b class="color-green label-required-prev">等级序号</b><span class="margin-left-5 color-desc">Serial</span>
                     <select class="layui-select" name="number" lay-filter="number">
-                        {for start="0" end="10" name="i"}{if isset($vo.number) and $vo.number eq $i}
+                        {for start="1" end="$max" name="i"}{if isset($vo.number) and $vo.number eq $i}
                         <option selected value="{$i}">当前 VIP {$vo.number} 等级</option>
                         {else}
                         <option value="{$i}">设置 VIP {$i} 等级</option>