Based on the analytic hierarchy process and fuzzy mathematics theory,the integrated evaluation of soil fertility quality was studied at ravine regions of loess plateau in Zichang County of Shaanxi Province. And seven indexes,including soil organic matter,total N,total P,total K,available N,available P and available K were investigated in 5different types of land use.The results showed that there was significant heterogeneity in seven soil fertility indexes.According to soil fertility quality level standard of Shaanxi Province, soil organic matter contents in all the 5different land types were relative low,especially in the new manmade farmland,which was the lowest(level 8).The other indices such as total N content,soil rapidly available N and soil available P were relative low as well.The grass land and flood land held higher soil available P(level 4-5),compared with the other land use types.The content of soil total and available K were the highest among all the indices,especially in new cultivated land and dam land.As the low content of organic matter, N and P in soil,more attention need to paid in sustainable soil fertility development in Loess Plateau.