The experimental base on ecological economy structure in Guyuan County has some distinguishing features, which accords with the farmer'swill, focuses on economic benefits, harnesses poorness and get rich; alsoit suits natural principles, takes prevention for production, and initiatesthe turn of smallscale peasants economy to the commodity economy inthe adjustment of the agricultural structures and makes close cooperationamong the county government, scientific research organization and research personnel.All those above have produced plentiful and substantialresults of the comprehensive experiments, from which much enlightenments are available, first of all, experiments of soil and water conservationon loess plateau ought to be large scale, to which the governments mustgive special guide; secondly, agricultural scientific experiments should becombined with socialist commodity economy; and thirdly, in the development of northwest China, soil and water conservation work shouldbe acceleratd, the scientific experiments of which go further. To servethe development of northwestern China is the historical mission of theNorthwestern Institute of Soil and Water Conservation under theChinese Academy of Sciences and the Ministry of Water conservancy, andhas extremly great prospect in development.