diff --git a/app/Services/ParkingLicensePlateService.php b/app/Services/ParkingLicensePlateService.php
index 8111bdc..a2e1194 100644
--- a/app/Services/ParkingLicensePlateService.php
+++ b/app/Services/ParkingLicensePlateService.php
@@ -224,7 +224,7 @@ class ParkingLicensePlateService
         if ($this->isMainlandChinaPlate($plate)) {
             // 中国大陆车牌校验（禁止 I、O）
             $pattern
-                = '/^[\x{4e00}-\x{9fa5}][A-Z](?:[A-HJ-NP-Z0-9]{6}|(?:[DF][A-HJ-NP-Z0-9][0-9]{4}|[0-9]{5}[DF]))$/u';
+                = '/^[\x{4e00}-\x{9fa5}][A-Z](?:[A-HJ-NP-Z0-9]{6}|(?:[A-HJ-NP-Z0-9][0-9]{4}|[0-9]{5}))$/u';
             if (!preg_match($pattern, $plate)) {
                 return __validation('parking_space.zh_plate');
             }