diff --git a/library/think/Model.php b/library/think/Model.php
index 602f77ab..b90cd54e 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -353,7 +353,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
             // 检测修改器
             $method = 'set' . Loader::parseName($name, 1) . 'Attr';
             if (method_exists($this, $method)) {
-                $value = $this->$method($value, array_merge($this->data, $data));
+                $value = $this->$method($value, array_merge($this->data, $data), $this->relation);
             } elseif (isset($this->type[$name])) {
                 // 类型转换
                 $value = $this->writeTransform($value, $this->type[$name]);
@@ -532,7 +532,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
         // 检测属性获取器
         $method = 'get' . Loader::parseName($name, 1) . 'Attr';
         if (method_exists($this, $method)) {
-            $value = $this->$method($value, $this->data);
+            $value = $this->$method($value, $this->data, $this->relation);
         } elseif (isset($this->type[$name])) {
             // 类型转换
             $value = $this->readTransform($value, $this->type[$name]);