宗族是汉人社会研究的核心论题。本文以清季民国北方商镇杨柳青为个案,提出“商域宗族”论说,认为商号是市镇的空间与记忆符号、基本组织形式,商绅是市镇宗族的类型与核心圈层,宗族及其延伸组织不仅为农人且为商人所有,宗族作为商人天然的内层信任机构具有商营功能。它扩大了宗族类型研究,由此引发出“圈层格局”对差序格局的补充。 Clan is the core topic of Chinese social studies. Based on the case of Yangliuqing, a northern commercial town in the Qing Dynasty and the Republic of China, this paper puts forward a proposition that the firm is the space and memory symbol of the town and the basic organizational form. The commercial gentry is the type and core circle of the clan in the town, Clans and their extension organizations are owned not only by peasants but also by merchants, which have commercial functions as the natural inner trust of merchants. It expanded the study of clan types, which led to the “circle pattern ” complement the pattern of difference.