From the perspective of anthropology，this paper examines the European’s stepping from division to integration，analyzes the power，property and function of EU which is a new human community，expounds the development situation of EU’s member states，and discusses the future tendency of human community. The author holds that the EU is a kind of rational choice of Europeans；the EU’s institutions serve the transnational society and work for transnational regulation；the long-term benefits of the member states’governments will lead to the staunch performance of nationalism which publicizes national benefits and defends ethno-national characteristics；the contradiction between the enlargement of the transnational power and the narrowness of the member states’ power is increasingly protruding；the construction of the EU does not mean the end of the nation-states，and EU does not represent the development tendency of human community.