Abstract: ＂Nine years of drought＂ of Aohan, the causes of which were arid climatic conditions, topography and soil parentmaterial composition and the impact of human activity. In the status of Aohan ti~equent droughts, water conservation wasrecommended by irrigation and artificial rainfall and other ways to ease the impact of drought. In addition planting trees andgrass, an increase of vegetation coverage were to improve the ecological environment. Local agricultural production structureand layout will need to be rationally adjusted.