Abstract: In this experiment, the effect of nitrogen and phosphorus fertihzer on the yield of different rape varieties was studied by orthogonal experiment design. With the increase of nitrogen fertilizer application, yield increased and showed significant difference （P〈0.05）; under no nitrogen fertilizer, the yield can significantly increase with the application of phosphate fertilizer; under low nitrogen conditions （N1, that fertilizer is 65 kg/hm~）, phosphorus treatment compare with no P treatment had an yield increasing trend, and high levels of phosphorus fertilization amount （i.e.P3：726.5 kg/hm~） production increased significantly（P〈0.05）; at higher nitrogen conditions （N3：nitrogenous fertilizer quantity is 321 kg/hmZ）, the application of low phosphorus （Pl ： 198 kg/hm2）, yield increasing 8.4%. The combined application of nitrogen and phosphorus fertilizer can achieve increasing yield. Comprehensive comparison of varieties, nitrogen and phosphorus fertilizer production, fertilization, variety combination： N2 and Long-you No.5, P3 has the highest seed yield, reaching at 2 900 kg/hm2.