diff --git a/app/admin/validate/v1/SysBannerItemValidate.php b/app/admin/validate/v1/SysBannerItemValidate.php
index aa24bcba..b5dae8df 100644
--- a/app/admin/validate/v1/SysBannerItemValidate.php
+++ b/app/admin/validate/v1/SysBannerItemValidate.php
@@ -18,7 +18,7 @@ class SysBannerItemValidate extends Validate
         'banner_id'       => 'require|integer',
         'title'           => 'require|max:128',
         'title_txt_color' => 'max:7',
-        'desc'            => 'max:255',
+        'desc'            => 'max:1024',
         'desc_txt_color'  => 'max:7',
         'type'            => 'in:image,video',
         'image'           => 'max:255',
@@ -43,7 +43,7 @@ class SysBannerItemValidate extends Validate
         'title.require'       => '名称不能为空',
         'title.max'           => '名称最多不能超过128个字符',
         'title_txt_color.max' => '名称字体颜色最多不能超过7个字符',
-        'desc.max'            => '描述最多不能超过255个字符',
+        'desc.max'            => '描述最多不能超过1024个字符',
         'desc_txt_color.max'  => '描述字体颜色最多不能超过7个字符',
         'type.in'             => '显示类型必须是image或video',
         'image.max'           => '图片地址最多不能超过255个字符',