In Historical Research, No.4, 2021, Su Hang suggests that the interaction between culture and ethnicity in the Northern Dynasties indicates that there was no one-to-one correspondence in between, and that the long prevailing ‘ethnic cultural determinism’ in the study of medieval history has no factual and theoretical basis. In a network of multicultural interaction, the so-called ‘Sinicization Mainstream’ refers to the process whereby the high-value items of the ‘Great Tradition’ of the Central Plains are embedded in the authoritative value structure of the non-Han people in the region through the medium of institutions, and then by ‘exemplification’, which facilitates all aspects of society constantly approaching the mainstream form of cultures of the Central Plains. The ultimate result is not always the assimilation of cultures and peoples, but rather, the coalescence of diverse populations and cultures on the basis of the convergence of high-level value forms. The formation of the Pattern of Diversity in Unity and the sense of community of the Chinese Nation is based on the pluralistic integration of a value structure.