diff --git a/library/think/App.php b/library/think/App.php
index 4b26992f..cfe087d8 100644
--- a/library/think/App.php
+++ b/library/think/App.php
@@ -461,11 +461,6 @@ class App
      */
     public static function routeCheck($request, array $config)
     {
-        // 检测URL禁用后缀
-        if ($config['url_deny_suffix'] && preg_match('/\.(' . $config['url_deny_suffix'] . ')$/i', $request->pathinfo())) {
-            throw new Exception('url suffix deny:' . $request->ext());
-        }
-
         $path   = $request->path();
         $depr   = $config['pathinfo_depr'];
         $result = false;
diff --git a/library/think/Route.php b/library/think/Route.php
index 55fde12c..18f055a6 100644
--- a/library/think/Route.php
+++ b/library/think/Route.php
@@ -916,7 +916,8 @@ class Route
         // 请求类型检测
         if ((isset($option['method']) && false === stripos($option['method'], $request->method()))
             || (isset($option['ext']) && false === stripos($option['ext'], $request->ext())) // 伪静态后缀检测
-             || (isset($option['domain']) && !in_array($option['domain'], [$_SERVER['HTTP_HOST'], self::$subDomain])) // 域名检测
+             || (isset($option['deny_ext']) && false !== stripos($option['deny_ext'], $request->ext()))
+            || (isset($option['domain']) && !in_array($option['domain'], [$_SERVER['HTTP_HOST'], self::$subDomain])) // 域名检测
              || (!empty($option['https']) && !$request->isSsl()) // https检测
              || (!empty($option['before_behavior']) && false === Hook::exec($option['before_behavior'], '', $url)) // 行为检测
              || (!empty($option['callback']) && is_callable($option['callback']) && false === call_user_func($option['callback'])) // 自定义检测