Data on precipitation,soil,terrain,vegetation and management activities in the groundwater supply district of Ji' nan City were collected and treated in a geog raphical information system(GIS)to produce distribution grid maps of R,K,SL,C and P.These attribute maps were overlain and computations were undertaken using USLE.The results were used to produce a soil and water loss intensity map.From this map the present status of soil and water loss in the district was determined and the reasons for these conditions were assessed.The study area was then classed into three separate categories, namely urban area,three-valley area, Shahe area and corresponding soil and water loss management measures were determined.