diff --git a/app/admin/controller/v1/ArticleCategory.php b/app/admin/controller/v1/ArticleCategory.php
index bb6ddb65..2012a848 100644
--- a/app/admin/controller/v1/ArticleCategory.php
+++ b/app/admin/controller/v1/ArticleCategory.php
@@ -20,6 +20,7 @@ class ArticleCategory
         ]);
         $categorys = ArticleCategoryModel::field([
                 'id', 
+                'pid',
                 'name'
             ])
             ->language(request()->lang_id)
@@ -31,16 +32,14 @@ class ArticleCategory
             })
             ->order('sort', 'asc')
             ->select();
-        return success('获取成功', $categorys);
+        return success('获取成功', array_to_tree($categorys, 0, 'pid', 1, false));
     }
 
     // 分类分页列表
     public function index()
     {
         $param = request()->param([
-            'name',
-            'page/d'  => 1,
-            'limit/d' => 10,
+            'name'
         ]);
 
         $category = ArticleCategoryModel::withoutField([
@@ -54,12 +53,9 @@ class ArticleCategory
                 }
             })
             ->order('sort', 'asc')
-            ->paginate([
-                'page'      => $param['page'],
-                'list_rows' => $param['limit']
-            ]);
+            ->select();
 
-        return success('获取成功', $category);
+        return success('获取成功', array_to_tree($category, 0, 'pid', 1, false));
     }
 
     // 分类详情
@@ -80,13 +76,14 @@ class ArticleCategory
     {
         $post = request()->post([
             'name',
+            'pid',
             'sort'    => 0,
             'is_show' => 1
         ]);
 
         $data = array_merge($post, ['language_id' => request()->lang_id]);
         $valiate = new ArticleCategoryValidate;
-        if (!$valiate->check($data)) {
+        if (!$valiate->scene('add')->check($data)) {
             return error($valiate->getError());
         }
 
@@ -103,6 +100,7 @@ class ArticleCategory
         $id  = request()->param('id');
         $put = request()->put([
             'name',
+            'pid',
             'sort',
             'is_show'
         ]);
diff --git a/app/admin/validate/v1/ArticleCategoryValidate.php b/app/admin/validate/v1/ArticleCategoryValidate.php
index b334b61f..efe019be 100644
--- a/app/admin/validate/v1/ArticleCategoryValidate.php
+++ b/app/admin/validate/v1/ArticleCategoryValidate.php
@@ -3,6 +3,8 @@ declare (strict_types = 1);
 
 namespace app\admin\validate\v1;
 
+use app\admin\model\v1\ArticleModel;
+use think\facade\Db;
 use think\Validate;
 
 class ArticleCategoryValidate extends Validate
@@ -14,8 +16,10 @@ class ArticleCategoryValidate extends Validate
      * @var array
      */
     protected $rule = [
+        'id'           => 'require|integer',
         'language_id'  => 'require|integer',
         'name'         => 'require|unique:article_category,name^language_id|max:64',
+        'pid'          => 'integer"different:id|checkPidNotBeChildren',                // 验证pid
         'sort'         => 'require|integer',
         'is_show'      => 'require|in:0,1',
         'seo_title'    => 'max:255',
@@ -30,17 +34,54 @@ class ArticleCategoryValidate extends Validate
      * @var array
      */
     protected $message = [
-        'language_id.require'  => '语言ID不能为空',
-        'language_id.integer'  => '语言ID必须为整数',
-        'name.require'         => '分类名称不能为空',
-        'name.unique'          => '分类名称已存在',
-        'name.max'             => '分类名称最多64个字符',
-        'sort.require'         => '排序不能为空',
-        'sort.integer'         => '排序必须为整数',
-        'is_show.require'      => '是否显示不能为空',
-        'is_show.in'           => '是否显示值必须为0或1',
-        'seo_title.max'        => 'SEO标题最多255个字符',
-        'seo_keywords.max'     => 'SEO关键词最多255个字符',
-        'seo_desc.max'         => 'SEO描述最多255个字符',
+        'id.require'                => '分类ID不能为空',
+        'id.integer'                => '分类ID必须为整数',
+        'language_id.require'       => '语言ID不能为空',
+        'language_id.integer'       => '语言ID必须为整数',
+        'name.require'              => '分类名称不能为空',
+        'name.unique'               => '分类名称已存在',
+        'name.max'                  => '分类名称最多64个字符',
+        'pid.integer'               => '父级分类ID必须为整数',
+        'pid.different'             => '父级分类ID不能为自身',
+        'pid.checkPidNotBeChildren' => '父级分类不能为子分类',
+        'sort.require'              => '排序不能为空',
+        'sort.integer'              => '排序必须为整数',
+        'is_show.require'           => '是否显示不能为空',
+        'is_show.in'                => '是否显示值必须为0或1',
+        'seo_title.max'             => 'SEO标题最多255个字符',
+        'seo_keywords.max'          => 'SEO关键词最多255个字符',
+        'seo_desc.max'              => 'SEO描述最多255个字符',
     ];
+
+    // 验证pid
+    protected function checkPidNotBeChildren($value, $rule, $data = [])
+    {
+        if ($value == 0) {
+            return true;
+        }
+        $table_name = (new ArticleModel)->getTable();
+        $children = Db::query(
+            preg_replace(
+                '/\s+/u', 
+                ' ',
+                "WITH RECURSIVE article_tree_by AS (
+                    SELECT a.id, a.pid FROM $table_name a WHERE a.id = {$data['id']}
+                    UNION ALL
+                    SELECT k.id, k.pid FROM $table_name k INNER JOIN article_tree_by t ON t.id = k.pid
+                )
+                SELECT id FROM article_tree_by WHERE id <> {$data['id']};"
+            )
+        );
+        if (!empty($children) && in_array($data['pid'], array_column($children, 'id'))) {
+            return false;
+        }
+
+        return true;
+    }
+
+    // 新增分类验证场景
+    protected function sceneAdd()
+    {
+        $this->remove('id', 'require|integer')->remove('pid', 'different|checkPidNotBeChildren');
+    }
 }