Abstract: Systematically sorting out method of pitching in from the basic point categorically and at different levels is a linguistic research idea, which takes the basic point level of civilization category as the pitching in and starting point, conducts research level by level and sorts out systematically along the levels within the category.This method is employed to solve such bottleneck problem in affirming Chinese words and phrases, and it is also used as a general method in Chinese research.

Key words: linguistics, category, level, pitching in from the basic point