The representative soil samples of organic matter,total nitrogen,available nitrogen,available phosphorus,available potassium and p H are determined from the Liangshan buckwheat oats centralized area Zhaojue,Meigu,Yanyuan,Yuexi,Mianning.The results show that the amplitude of PH in soil was 6.59~4.53;each index respectively averaged：organic matter4.62%,total nitrogen 0.22%,available nitrogen 298.92 mg/kg,available P25.40 mg/kg,available K 199.82 mg/kg.At the same time,monitoring and contrast on soil nutrient before planting and after harvest,proposes fertilizer principles to Liangshan oats buckwheat region.