Abstract：The core concept and the conceptual system are the bedrocks of a theory as well as the key factors of a theoretical opinion or a theoretical system,which in turn determine the power of its explanation.In order to explain new phenomena more powerfully,it is necessary for us to check carefully and then to revise,refuse,or reconstruct those existing core concepts and conceptual system of respective branches during our research.This essay categorizes them as types of theoretical proposition,theoretical system,and disciplines.Based upon two cases,it also tells us from a methodological perspective how to analyze,check and construct new ones during our reflection and research to a discipline.
