diff --git a/src/Entity.php b/src/Entity.php
index e0582095..5c949cd2 100644
--- a/src/Entity.php
+++ b/src/Entity.php
@@ -15,6 +15,7 @@
 
 use ArrayAccess;
 use BackedEnum;
+use Closure;
 use InvalidArgumentException;
 use JsonSerializable;
 use Stringable;
@@ -84,6 +85,7 @@ public function __construct(array | object $data = [], ?Model $model = null)
             'mapping'       => $options['mapping'] ?? [],
             'strict'        => $options['strict'] ?? true,
             'bind_attr'     => $options['bind_attr'] ?? [],
+            'auto_insert'   => $options['auto_insert'] ?? [],
             'auto_relation' => $options['auto_relation'] ?? [],
             'relation_keys' => $options['relation_keys'] ?? [],
         ];
@@ -757,6 +759,11 @@ public function save(array | object $data = [], $where = []): bool
         // 自动时间戳处理
         $this->autoDateTime($data, $isUpdate);
 
+        if (!$isUpdate) {
+            // 自动写入数据
+            $this->autoInsertData($data);
+        }
+
         $model = $this->model();
         if ($model instanceof Model) {
             $result = $model->allowField($allow)->setUpdateWhere($where)->save($data);
@@ -805,6 +812,30 @@ protected function autoDateTime(array &$data, bool $update)
         }
     }
 
+    /**
+     * 字段自动写入.
+     *
+     * @param array $data 数据
+     * @return void
+     */
+    protected function autoInsertData(array &$data)
+    {
+        if (!empty(self::$weakMap[$this]['auto_insert'])) {
+            foreach (self::$weakMap[$this]['auto_insert'] as $name => $val) {
+                $field = is_string($name) ? $name : $val;
+                if (!isset($data[$field])) {
+                    if ($val instanceof Closure) {
+                        $value = $val($this);
+                    } else {
+                        $value = is_string($name) ? $val : $this->setWithAttr($field, null, $data);
+                    }
+                    $data[$field] = $value;
+                    $this->setData($field, $value);
+                }
+            }
+        }
+    }
+
     /**
      * 获取当前时间.
      *