Abstract: Through the research of four factors and three levels orthogonal experiment on sowing time,sowing rate and application of N.P2O5 about millet,by range of methods for analysis,the result show that Influence factors on millet yield sequence order is application of P2O5〉sowing rate〉sowing time〉application of N.With the method of level analysis,the result show that the optimal Combination of yield is A1B2C2D3, this means is in this region millet sowing date for May 10th, seeding quantity is 1.5kg / 667m2, application of Nitrogen fertilizer is 3.0kg / 667m2 and application of P205 is 6.0kg/667m2 .The study of experimental to provide scientific basis for combination in future.