diff --git a/app/admin/model/v1/ProductCategoryModel.php b/app/admin/model/v1/ProductCategoryModel.php
index eb4dabaf..b642190a 100644
--- a/app/admin/model/v1/ProductCategoryModel.php
+++ b/app/admin/model/v1/ProductCategoryModel.php
@@ -32,7 +32,8 @@ class ProductCategoryModel extends ProductCategoryBaseModel
     // 所属产品目录分类id查询
     public function scopeTcoId($query, $value)
     {
-        $query->where('related_tco_category', '=', $value);
+        // $query->where('related_tco_category', '=', $value);
+        $query->whereRaw('FIND_IN_SET(:ref_id, related_tco_category)', ['ref_id' => $value]);
     }
 
     /**
diff --git a/app/admin/validate/v1/ProductCategoryValidate.php b/app/admin/validate/v1/ProductCategoryValidate.php
index d1bf3df3..6d14513a 100644
--- a/app/admin/validate/v1/ProductCategoryValidate.php
+++ b/app/admin/validate/v1/ProductCategoryValidate.php
@@ -23,7 +23,7 @@ class ProductCategoryValidate extends Validate
         'name'                 => 'require|max:64',
         'icon'                 => 'max:125',
         'desc'                 => 'max:255',
-        'related_tco_category' => 'integer',
+        'related_tco_category' => 'string',
         'sort'                 => 'integer',
         'level'                => 'integer',
         'is_show'              => 'in:0,1',
@@ -51,7 +51,7 @@ class ProductCategoryValidate extends Validate
         'name.max'                     => '名称最多不能超过64个字符',
         'icon.max'                     => '图标最多不能超过125个字符',
         'desc.max'                     => '描述最多不能超过255个字符',
-        'related_tco_category.integer' => '关联TCO分类格式错误',
+        'related_tco_category.string'  => '关联TCO分类格式错误',
         'sort.integer'                 => '排序格式错误',
         'level.integer'                => '级别格式错误',
         'is_show.in'                   => '是否显示格式错误',