The idea of community is an important part of Marx’s theory, which plays an important role in Marx’s theory system. Marx community theory inherits and transcends different community thoughts with certain background during different historical period, specifying the formation and status of the natural community, unreal community and real community during three distinguished stages: the precapitalist society, capitalist society and humanitarian communist society, which finally form the theoretical system of Marx community. Linking with practical experience, Marx community thought has profound impact on the building of a moderately prosperous society in all respects as well as the construction of Chinese citizens’ social community and a new model of majorcountry relationship.