Abstract: The study is to provide scientific base for high production of mid-gluten wheat with certain applying amount of nitrogen fertilizer. Effects of the quantities of nitrogen fertilizer on the yield and population quality of mid-gluten Yangmai 11 are studied in the experiment. The results indicate that on the condition of the ratio of 5:5 between basal N and top dressing N, the nitrogen applying on the shooting stage and the suitable applying amount of nitrogen fertilizer of 225~281.25kg/hm2, the yield and the overall applying quantities of nitrogen fertilizer show conic relation and it can get higher grain yield, ratio of fertile tillers, the max LAI and biomass of ripping period.