Wuwei oasis is a typical agricultural oasis in Gansu province, there are 10×10~4 hm~2 farmland and 1 Million population. The oasis development keeps stability in long history. With human disturbance activities become more and more obvious in recently 20 years, Landscape spatial pattern change rapidly. Based on GIS and Remote Sensing, the paper analyzed landscape changes of Wuwei oasis from 1986 to 2000 and its driving force. The irrigated farmland increased 6295 hm~2, mainly changed from bare land and deser...