Abstract: Kato Hiroyuki’s and Liang Qichao’s absorptions of Bluntchli’s theory of social organism had their own characteristics. Kato mainly focused on Bluntchli’s doctrine of sovereign rights of state as a legal institution and its implied idea of monarchical sovereignty. Liang was more concerned with Bluntchli’s views on essential laws of state’s formation, development and decline, based on his positivistic method of historical research. Their distinctive features reflected then different problems confronted by China and Japan and basic differences between their cultural traditions.

Key words: Kato Hiroyuki , Liang Qichao , Bluntchli , state organic theory