Abstract: Although the rise and fall is a political phenomenon,it is actually caused by various objective political forces behind it. In order to gain insight into the complicated relations of the Shuhan regime,this paper quantifies the relations of Shuhan political figures through text mining methods and analyzes the structure of Shuhan political network from four aspects:overall characteristics of Shuhan political network,core political figures,internal historical changes, and external co-temporal comparison with other countries,based on the Three Kingdoms Annals. The study shows that the power division and political structure changes of the Shuhan regime were related to the place of origin;compared with Wei and Wu,the Shuhan regime had more centralized power and smoother power transition. With objective facts, this study responds to the debate on the transmutation of the political structure of the Shuhan Dynasty from a global historical perspective,proposes new research entry points and also provides a reference for making full use of digital technology for historical research.

Key words: Shuhan regime, Three Kingdoms Annals, political network, social network analysis, text mining