For a multi-ethnic unified political community,the identity integration of floating population mingled with ethnic factors is particularly important.As the two major identity forms in a multi-ethnic country,national identity and state identity prove to be of profound and complex significance.This paper argues that thorough researches on identity structure,logical extension and inducement factors of floating population is necessary in the process of urbanization to provide foundation and value guidance for identity integration.It is also necessary to explore the path and conditions of practical promotion through optimizing the tools of modern social governance and state governance,to strengthen deep integration of national identity and state identity for the floating population of ethnic minorities,to safeguard ethnic exchanges,interaction,cooperation and solidarity,and to ensure the orderly development of society as well.