Conflict and integration are the two major melodies of cross-cultural communication.Conflict is not only the resistance of integration, but also the motive force of integration, and what kind of conflict often brings up what kind of integration. The spread of Buddhism in China, as a major event in the history of Chinese cross-cultural communication, has experienced deep theoretical conflicts, identity conflicts and power conflicts with the Chinese native Confucianism and Taoism. In theory, Confucianism, Buddhism and Taoism launched a public debate around the core values. In identity, the entanglement between Buddha and Hu is not only the strength of national identity, but also the opportunity for Buddhism to spread. The conflict of power finally standardized the functional division of Confucianism, Buddhism and Taoism, and established the basic communication order.