Based on the MSS images in 1979 and ETM data in 2002,soil erosion change in Panshi City isstudied with the aid of RS and GIS. The sub-pixel models are used to estimate vegetation coverage and then landuse and slope information is combined to study regional soil erosion change. Results show that from 1979 to 2002, soil erosion became more serious and the main soil erosion region was gradually expanded and its ar-ea was increased. This method is highly efficient and can improve the speed and efficiency of regional soil ero-sion monitoring. It is an effective way to study regional soil erosion.