Abstract：During the late Ming and early Qing dynasties, Zhuzi School and Yangming School showed great disagreement with each other and abuses overgrew. In order to solve the problems above, Sun Xiafeng strived to integrate Zhuzi School with Yangming School through discussion of such theories as respecting morality and knowledge, investigation of “things”and practising “li”, and unity of knowing and doing. To some degree, Sun Xiafeng's effort saved the increasingly decadent academic atmosphere during the late Ming and early Qing dynasties, and more importantly, under his influence, a host of great thinkers who emphasized practice rather than preaches were brought up.

Keyword：Sun Xiafeng;Zhuzi School;Yangming School;integration;