diff --git a/library/think/db/Query.php b/library/think/db/Query.php
index 6daa6f67..cd7a093b 100644
--- a/library/think/db/Query.php
+++ b/library/think/db/Query.php
@@ -1675,11 +1675,29 @@ class Query
      * 关联统计
      * @access public
      * @param string|array    $relation 关联方法名
+     * @param bool            $subQuery 是否使用子查询
      * @return $this
      */
-    public function withCount($relation)
+    public function withCount($relation, $subQuery = false)
     {
-        $this->options['with_count'] = $relation;
+        if (!$subQuery) {
+            $this->options['with_count'] = $relation;
+        } else {
+            $relations = is_string($relation) ? explode(',', $relation) : $relation;
+            if (!isset($this->options['field'])) {
+                $this->field('*');
+            }
+            foreach ($relations as $key => $relation) {
+                $closure = false;
+                if ($relation instanceof \Closure) {
+                    $closure  = $relation;
+                    $relation = $key;
+                }
+                $relation = Loader::parseName($relation, 1, false);
+                $count    = '(' . (new $this->model)->$relation()->getRelationCountQuery($closure) . ')';
+                $this->field([$count => Loader::parseName($relation) . '_count']);
+            }
+        }
         return $this;
     }
 
diff --git a/library/think/model/relation/BelongsToMany.php b/library/think/model/relation/BelongsToMany.php
index 37d07eec..e1849d89 100644
--- a/library/think/model/relation/BelongsToMany.php
+++ b/library/think/model/relation/BelongsToMany.php
@@ -161,6 +161,17 @@ class BelongsToMany extends Relation
         return $count;
     }
 
+    /**
+     * 获取关联统计子查询
+     * @access public
+     * @param \Closure  $closure 闭包
+     * @return string
+     */
+    public function getRelationCountQuery($closure)
+    {
+        return $this->belongsToManyQuery($this->middle, $this->foreignKey, $this->localKey, ['pivot.' . $this->localKey => ['exp', '=' . $this->parent->getTable() . '.' . $this->parent->getPk()]])->fetchSql()->count();
+    }
+
     /**
      * 多对多 关联模型预查询
      * @access public
diff --git a/library/think/model/relation/HasMany.php b/library/think/model/relation/HasMany.php
index f6455d6b..e5690137 100644
--- a/library/think/model/relation/HasMany.php
+++ b/library/think/model/relation/HasMany.php
@@ -130,6 +130,21 @@ class HasMany extends Relation
         return $count;
     }
 
+    /**
+     * 创建关联统计子查询
+     * @access public
+     * @param \Closure  $closure 闭包
+     * @return string
+     */
+    public function getRelationCountQuery($closure)
+    {
+        if ($closure) {
+            call_user_func_array($closure, [ & $this->query]);
+        }
+
+        return $this->query->where([$this->foreignKey => ['exp', '=' . $this->parent->getTable() . '.' . $this->parent->getPk()]])->fetchSql()->count();
+    }
+
     /**
      * 一对多 关联模型预查询
      * @access public
diff --git a/library/think/model/relation/MorphMany.php b/library/think/model/relation/MorphMany.php
index 44c344cd..d76052ed 100644
--- a/library/think/model/relation/MorphMany.php
+++ b/library/think/model/relation/MorphMany.php
@@ -133,6 +133,21 @@ class MorphMany extends Relation
         return $count;
     }
 
+    /**
+     * 获取关联统计子查询
+     * @access public
+     * @param \Closure  $closure 闭包
+     * @return string
+     */
+    public function getRelationCountQuery($closure)
+    {
+        if ($closure) {
+            call_user_func_array($closure, [ & $this->query]);
+        }
+
+        return $this->query->where([$this->morphKey => ['exp', '=' . $this->parent->getTable() . '.' . $this->parent->getPk()], $this->morphType => $this->type])->fetchSql()->count();
+    }
+
     /**
      * 多态一对多 关联模型预查询
      * @access public