With Kashigar Area of Xinjiang Autonomous Region as an example,and by use of GIS software,the archaeological and literature materials are processed to draw settlement distribution maps of different historical periods.Through the overlay of these maps,this paper analyzes the general spatial distribution pattern and evolution rules of the ancient settlements in this area.In the end,through the analysis on some of the related influencing factors,the paper reveals the causes of time-space distribution characteristics of these settlements.