Abstract: Geography s substance doesn t consist of pure space factors, this space still hides some features which we haven't known to this day. The regulations are discovered by people through understanding the reality and the substance,and the former determines the latter. In this article, the author suggests that the geographic concept of subatance related to a philosophic question of world authen ticity should be put forward, and that we should follow this concept,so that geography can make rational headway and s...