diff --git a/app/admin/validate/v1/SysBannerItemValidate.php b/app/admin/validate/v1/SysBannerItemValidate.php
index 8e40cd4a..b38cba73 100644
--- a/app/admin/validate/v1/SysBannerItemValidate.php
+++ b/app/admin/validate/v1/SysBannerItemValidate.php
@@ -25,7 +25,7 @@ class SysBannerItemValidate extends Validate
         'extra_image'     => 'max:255',
         'video'           => 'max:255',
         'link_to'         => 'requireIf:type,image|max:64|in:article,article_category,product,product_category,system_page,custom',
-        'link'            => 'max:255',
+        'link'            => 'max:510',
         'sort'            => 'integer',
         'status'          => 'in:-1,1'
     ];
@@ -54,7 +54,7 @@ class SysBannerItemValidate extends Validate
         'link_to.requireIf'   => '链接类型不能为空',
         'link_to.max'         => '链接类型最多不能超过64个字符',
         'link_to.in'          => '链接类型必须是article,article_category,product,product_category,system_page,custom中之一',
-        'link.max'            => '链接最多不能超过255个字符',
+        'link.max'            => '链接最多不能超过512个字符',
         'sort.integer'        => '排序值必须是整数',
         'status.in'           => '状态必须是-1或1'
     ];