The results of this study showed that the effect of different application amounts of nitrogen,phosphorus and potassium on the yield components of high quality maize varieties was different.For "Tongyou 1",the yield components were optimal when 195 kg of N,75 kg of P₂O₅ and 75 kg of K₂O were applied per hectare.For "Zhengdan 21",the yield components were optimal when 195 kg of N,105 kg of P₂O₅ and 120 kg of K₂O were applied per hectare.