Abstract:Xinjiang Uygur Autonomous Region is one of important farming areas in China.In order to control agricultural non-point pollution,the spatial distribution of nonpoint pollution from agriculture in Xinjiang area was studied based on the analysis o f main area source pollutants from agriculture and the help of GIS.Results showed t hat there were 20 areas with fertilizer use density larger than 400 kg/hm2,mainly concentrated in Tarim River,Manas River,Yili River basin and t he production and construct ion corps o f Xinjiang area.The spatial distribution of pesticide contaminated areas was basically the same with that of fertilizer contaminated areas.There were 18 areas with pesticide density exceeding 3 kg/hm2,13 areas with density of water drainage collection of animal husbandry larger than 30 kg/hm2.The degree of livestock farming pollution in North Xinjiang Autonomous Region was higher than in South Xinjiang Autonomous Region.As for the pollution of soil and water erosion,wind erosion pollution occupied 89.32%,and water erosion only occupied 10.68%.Cluster analysis of area source pollution of Xinjiang area indicated that region I was the heavily polluted areas,region was agriculture pollution areas,region was heavy pollution areas of animal husbandry,and region was light pollution areas.