diff --git a/library/think/App.php b/library/think/App.php
index 0f3375d9..4f08ee1f 100644
--- a/library/think/App.php
+++ b/library/think/App.php
@@ -221,11 +221,32 @@ class App
             $reflect = new \ReflectionMethod($method);
         }
         $args = self::bindParams($reflect, $vars);
-        // 记录执行信息
+
         self::$debug && Log::record('[ RUN ] ' . $reflect->__toString(), 'info');
         return $reflect->invokeArgs(isset($class) ? $class : null, $args);
     }
 
+    /**
+     * 调用反射执行类的实例化 支持依赖注入
+     * @access public
+     * @param string    $class 类名
+     * @param array     $vars  变量
+     * @return mixed
+     */
+    public static function invokeClass($class, $vars = [])
+    {
+        $reflect     = new \ReflectionClass($class);
+        $constructor = $reflect->getConstructor();
+        if ($constructor) {
+            $args = self::bindParams($constructor, $vars);
+        } else {
+            $args[] = Request::instance();
+        }
+
+        self::$debug && Log::record('[ RUN ] ' . $reflect->__toString(), 'info');
+        return $reflect->newInstanceArgs($args);
+    }
+
     /**
      * 绑定参数
      * @access public
diff --git a/library/think/Loader.php b/library/think/Loader.php
index 90780d04..ef86720c 100644
--- a/library/think/Loader.php
+++ b/library/think/Loader.php
@@ -406,7 +406,7 @@ class Loader
         }
         $class = self::parseClass($module, $layer, $name, $appendSuffix);
         if (class_exists($class)) {
-            return new $class(Request::instance());
+            return App::invokeClass($class);
         } elseif ($empty && class_exists($emptyClass = self::parseClass($module, $layer, $empty, $appendSuffix))) {
             return new $emptyClass(Request::instance());
         }