Abstract: Marxism regards that,the proletariat parties should be equal in solving ethnic problems and oppose national oppression,that the united and inseparable republics should be founded,and that local and regional autonomy should be conducted according to the practical situation.These theories deeply influence Chinese Communist Party in making its ethnic policy.In the more than fifty years since the founding of new China,Chinese Communist Party,guided by Marxism ethnic theories,has established a new socialist ethnic relationships of equality,unity,and mutual help,and has successfully established the system of ethnic regional autonomy.

Key words: Marxism, Chinese Communist Party, ethnic theories, ethnic policy, ethnic regional autonomy