Based on an analysis of the neotectonic evidemnce from fault movement, ter-race development,river channel shifts, drainage patterns and seismic activities inthe Yellow River valley in Lanzhou,it is found that since the end of the Pliocenethe neotectonic movement in the area has been intense. Three main tectonic e-vents occurred one of after anothr at 2.4 Ma B. P.,1.6 Ma B. P. and 0.16 fo 0.5MaB. P, which restricted and affected the dynamic process of landform and drain-age formation and development and environmental evolution. During the Quaternary the neotectonic movement was superimposed by dif-ferential block movement on the basis of the whole pulsatony uplift. Calculation in-dicates that the area has uplifted about 800 m since 2.4 Ma B. P. and that theheight of the terminal pliocene planation surface should be 936--1,000 m .A compar-ison between the neotectonics of the Lanzhou area and that of the Qinghai-Tibetplateau shows that the main tectonic events and modes of the neotectonic move-ment in the area are essentially consistent with three intense uplift periods anduplift modes of the Qinghai-Tibet plateau. Because of the special geomorphologicaland tectonic settings, the neotectonics of the area were entirely controlled by thestage-stage uplift of the Qinghai-Tibet plateau. It may be considered from thisthat the intense uplift of the Qinghai-Tibet plateau is the "drive" of the neotec-tonic movement on the plateau itself. and its adjacen? areas.