The scientific atheism that we are going to build is guided by Marxism and based on the theory of Marxism.The differentiation of scientific research is achieved according to the specific contradictoriness of the object under study.To advance a disciplinary construction, we need to stick to the law of the unity of opposites and contradiction analysis and to find out the basic contradiction of this discipline. The root of scientific atheism as a discipline and of its development lies in the contradiction between the non-existence of god in the world and the existence of “god”in social history of human beings，and as a consequence between belief and disbelief in god，which is the basic contradiction of the discipline. To construct the system of its fundamental theory and of the discipline，we should study all kinds of contradictions centering on the basic contradiction.

Editor: Zhong Yao

Studies on Marxism.2017.No.2.