Karst rocky desertification mountain areas are regarded as main positions to wipe out poverty for their large poverty population, wide poverty area, high rate of poverty, etc. This paper takes Liupanshui city as an example where the situation of rocky desertification is very serious. We build the indicator system of poverty alleviation and development by analyzing their poverty and using the AHP method and also find the limiting factors which restrict the development of this area then put forward the recommendations to alleviate poverty.