diff --git a/library/think/Model.php b/library/think/Model.php
index d4db7813..c9389356 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -1492,11 +1492,11 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
                 // 支持闭包查询过滤关联条件
                 $closure  = $relation;
                 $relation = $key;
-            } elseif (is_array($relation)) {
+            }
+            if (is_array($relation)) {
                 $subRelation = $relation;
                 $relation    = $key;
-            }
-            if (strpos($relation, '.')) {
+            } elseif (strpos($relation, '.')) {
                 list($relation, $subRelation) = explode('.', $relation, 2);
             }
             $method                = Loader::parseName($relation, 1, false);
@@ -1522,7 +1522,10 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
                 $closure  = $relation;
                 $relation = $key;
             }
-            if (strpos($relation, '.')) {
+            if (is_array($relation)) {
+                $subRelation = $relation;
+                $relation    = $key;
+            } elseif (strpos($relation, '.')) {
                 list($relation, $subRelation) = explode('.', $relation, 2);
             }
             $relation = Loader::parseName($relation, 1, false);
@@ -1548,7 +1551,10 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
                 $closure  = $relation;
                 $relation = $key;
             }
-            if (strpos($relation, '.')) {
+            if (is_array($relation)) {
+                $subRelation = $relation;
+                $relation    = $key;
+            } elseif (strpos($relation, '.')) {
                 list($relation, $subRelation) = explode('.', $relation, 2);
             }
             $relation = Loader::parseName($relation, 1, false);