diff --git a/src/base/GraphQLField.php b/src/base/GraphQLField.php
index 7c57fbe..13eb33b 100644
--- a/src/base/GraphQLField.php
+++ b/src/base/GraphQLField.php
@@ -45,6 +45,7 @@ protected function getResolver()
         $resolver = array($this, 'resolve');
         return function () use ($resolver) {
             $args = func_get_args();
+            $this->trigger(GraphQLModel::EVENT_BEFORE_RESOLVE);
             return $resolver(...$args);
         };
     }
@@ -80,4 +81,4 @@ public function getAttributes($name = null, $except = null)
 
         return $attributes;
     }
-}
\ No newline at end of file
+}
diff --git a/src/base/GraphQLModel.php b/src/base/GraphQLModel.php
index 0f2bc57..d2e7bc4 100644
--- a/src/base/GraphQLModel.php
+++ b/src/base/GraphQLModel.php
@@ -16,6 +16,8 @@
  */
 class GraphQLModel extends Model
 {
+    const EVENT_BEFORE_RESOLVE = 'beforeResolve';
+
     /**
      * All of the attributes set on the container.
      *
@@ -76,4 +78,4 @@ public function __unset($name)
     }
 
 
-}
\ No newline at end of file
+}
diff --git a/src/traits/ShouldValidate.php b/src/traits/ShouldValidate.php
index 63866f2..5d6ca7d 100644
--- a/src/traits/ShouldValidate.php
+++ b/src/traits/ShouldValidate.php
@@ -27,6 +27,7 @@ protected function getResolver()
 
             $rules = $this->rules();
             if (sizeof($rules)) {
+                $this->trigger(\yii\base\Model::EVENT_BEFORE_VALIDATE);
                 //索引1的为args参数.
                 $args = ArrayHelper::getValue($arguments, 1, []);
                 $val = DynamicModel::validateData($args, $rules);