diff --git a/dynamic_struct.go b/dynamic_struct.go
index 29d9d65..f3e81cf 100644
--- a/dynamic_struct.go
+++ b/dynamic_struct.go
@@ -183,9 +183,9 @@ func (ds *DynamicStruct) AddStructField(field reflect.StructField, fieldValue an
 	if field.Tag == "" {
 		field.Tag = reflect.StructTag(fmt.Sprintf(`json:"%v"`, field.Name))
 	}
+	ds.SetMapData(field.Name, fieldValue)
 	field.Name = String(field.Name).SnakeCaseToCamel() // 转成大驼峰, 保证对外可访问
 	ds.structFieldList = append(ds.structFieldList, field)
-	ds.SetMapData(field.Name, fieldValue)
 }
 
 // GetStructType 获取结构体的类型
@@ -248,3 +248,8 @@ func (ds *DynamicStruct) Clear() {
 func (ds *DynamicStruct) MarshalJSON() ([]byte, error) {
 	return json.Marshal(ds.mapData)
 }
+
+// MapData map数据
+func (ds *DynamicStruct) MapData() (map[string]any) {
+	return ds.mapData
+}