Abstract: There have been the confusing phenomena in the present situation of Marxism in China.We have found that there exists a dual structure of “Marxism in platform” and “Marxism in forum”.And，there are huge differences between them.In contents：the “Marxism in platform” is oldfashioned，while the “Marxism in forum” fresh and new.In theory：the “Marxism in platform” remains the same for years，the “Marxism in forum” keeps developing.Such dual structures result in two different interpretations about the Marxism.However，they two both pursue the liberation of human being.This paper tries to explore the common interests between them so that we can better understand the problems in Marxism development in China from a new perspective.

Key words: Marxism, Marxism in platform, Marxism in forum, dialectical materialism, historical materialism