In recent years, researches on Xunzis' philosophy, the theory of Qi, and relationship between the two are in the ascendant. There is still not a specialized dissertation between Xunzi's philosophy and the theory of Qi in Ming Dynasty. Wang Ting-Xiang and Wu Ting-Han were the representatives of Qi theory in Ming Dynasty, the theories which they had advocated to turn evil human nature to kindness were similar to Xunzi's. For example, they had emphasized the mind must be calm and concentrated that people could use wisdom to know the world. They had also valued the importance of moral accumulation and ritual education. All three had opposed to return the noumenon above things. We also discover the ideological trend of Xunzi,Wang Ting-Xiang and Wu Ting- Hans, is another important part of Confucianism.