Based on the traditional regional studies of soil erosion, the paper explored using GIS technology to analysis the existing maps and satellite imagery, to extracte the basic information of main factors affectting on soil erosion, and established a database of graphics and space property. The 1，5 000 GRID was used to extract data of soil erosion model and subdivide the monitoring area of soil and water conservation with the powerful ArcGIS spatial analysis function. The paper put forward the general layout scheme of Chongqing soil and water conservation monitoring sites base on different monitoring subdivision characteristics, which may provide some theoretical basis for the construction of monitoring networks in the future.