Abstract: The concept of community can be traced back to a very long time ago. Marx profoundly revealed that human society has experienced natural communities and unreal communities one after another. The real community is an ideal development form about the future of human society put forward by Marx on the basis of criticizing the reality of capitalist society. Marx's thought of community is the scientific ideological origin of the thought of a community of shared future for mankind put forward by the Chinese communists. On the basis of critically inheriting and absorbing Chinese traditional culture "cosmopolitism", Xi Jinping summarizes the thoughts and wisdom of Mao Zedong, Deng Xiaoping and other older proletarian revolutionaries, and advocates to build a community of shared future for mankind. He is courageous in exploring, continuously innovating, and boldly practicing in the temporal and spatial dimensions. In the new era, he contributes China's wisdom and China's plans to the development and progress of all mankind.