Almost every campus of the various universities for nationalities is more or less surroun-ded by ethnic minority people who sometimes form associations,and sometimes create residential quar-ters,streets, or communities.These are called Ur-ban Multi-Ethnic Communities ( UMEC ) .Many kinds of contradictions appear in the UMECs.How-ever, the root of these problems lies in culture. There,contradictions between the “heterogeneous”ethnic minority cultures and urban community cul-ture cause various ethnic disputes or conflicts which can become intense.The fundamental task of these universities for nationalities is to promote na-tional unity and prosperity through cultural and ed-ucational activities.This is because they have many obvious advantages in doing theoretical research, and have already made significant contributions to national unity and progress in practice.Hence,they should actively take part in the governance of UMECs.