diff --git a/library/think/model/relation/MorphTo.php b/library/think/model/relation/MorphTo.php
index 2990f75f..7987384f 100644
--- a/library/think/model/relation/MorphTo.php
+++ b/library/think/model/relation/MorphTo.php
@@ -43,6 +43,18 @@ class MorphTo extends Relation
         $this->relation  = $relation;
     }
 
+    /**
+     * 获取当前的关联模型类的实例
+     * @access public
+     * @return Model
+     */
+    public function getModel()
+    {
+        $morphKey = $this->morphKey;
+        $model    = $this->parseModel($this->parent->$morphType);
+        return (new $model)->db()->getModel();
+    }
+
     /**
      * 延迟获取关联数据
      * @param string   $subRelation 子关联名