This paper explores the basic character and core of Xunzi's moral thought from Xunzi's view of heaven, human nature and epistemology; on the other hand, it examines the possibility of Xunzi's moral thought practice from the perspective of self-cultivation and spiritual theory; Killing poems and books, following kings, knowing and governing, and distinguishing and distinguishing meanings, in order to achieve the division of countries and transform them into the world, and the rule of foreign kings, it shows Xunzi's objective ideal. Finally, discuss the moral standards of scholars from Xunzi's theory of ritual and music, and through the work of learning to achieve the achievement of personality, become a great Confucian who can govern the country well and save the world in response to changes.