Marxist Nationality and the State idea is the significant theory origin to deal with the current nationality problems for nationality country, which is of great value, but also encounters times conflicts. In the case of Family, Private Ownership and the Origin of the State, it is useful to master the Marx and Engels’nationality and the state ideas. Considering the current time background, it is clear to see the guidance meaning of Marxist Nationality and the State idea for our times, and for the development of China, a multinational country.