The new method of observing annual soil loss and its parameters is made upeof eight observing items and means. It is audio-visal, economical, simple and convnient. The results observed in experimental areas of southern and northern China show that the new method has better adaptability, more practicality and the same accuracy as conventional method. So, the new method can obtain a. lot of observing data which can be used in creating models of monitoring annual soil loss or revising formulation of USLE erosion factors to realize monitoring annual soil loss over province or county area by using remote sensing and GIS. Meantime, the results obser-Ped by using the new method show that changes of annual soil loss are seriously subjected to the cover degree of vegetation or crop, particularly in red soil regions.