Abstract:During the period of the Han and Wei Dynasties, social thought had been changed. In the turbulent times, in the face of various social disorders, the scholars of the Han and Wei Dynasties expressed their opinions on social fashion and people's characters through their books. The expositions of Wang Fu,Zhong Chang tong, Xun Yue and Xu Gan were important figures to promote the change of social thought during the period of the Han and Wei Dynasties. Their social fashion criticism embodied the adherence of Confucianism, and the advocation of real character criticism also opened up the trend of thought of "fame and truth" in the Han and Wei Dynasties.