According to study and inverstigation of a vast amount of informations and evidences on geology,geomorphology,fossil soil and trades of ancient human, a huge geographical variations occured in Huang Shan during the last thousands of year. The authors point out that the directional reason for the variation is the tectonic uplift in Huang Shun far back in the past. The uplift bringed a series of changes, the relief beame higher, climate from wet to dry, vegetation from luxuriance to rareness, and the pedogenesis became slower. After a Considerable period of time, progressively, various consequences and indications in Huang Shah obviously appeared. The even more serious erosion, poor soil,winddrift sand and drought were coming, so that ancient human who lived here had to leave for the existence. This important geographical event occured during the three-four thousands of year.