Abstract: In order to establish the index system for fertilization in Pingluo County of Ningxia to guide the local rice, rice quality and efficient production. Two treatments without fertilizer area and the conventional fertilization, multi point no repeat settings, to deepen the study on the influence of soil fertility on yield of rice. The results showed that: Soil Fertility on Rice Yield and rice yield contribution rate of soil foundation is proportional to the regression equation, X/Y=0.1366 0.00007322X, R₂=0.8509. So the conclusion is: the rice yield goal can be established for the 11800 kg hm _-2, at the same time, nitrogen and phosphorus fertilizer index values: pure N 371.2 kg hm_-2 , pure P₂O₅ for 154.0 kg hm _-2.