Abstract: To find the best combination in optimum sowing rate and N,P and K of proso millet high yield,The orthogonal experimental design method was used on Chishu-2,The Yield,Agronomic Traits and Fertility in different Sowing Rate and Fertilizer was recorded.The regression equation between them was builded,the maximum value of production,plant height,ear length,kernel weight per spike,aboveground biomass,grain weight,density,stem diameter was determined in regression equation, The results showed that：The production and aboveground hiomass increased with increasing density;between kernel weight per spike and seeding rate is inversely,kernel weight per spike is reduced follow the increase of seeding rate;increasing P fertilizer can make the straw and spike length increase;the heading date,flowering,maturity has little change in nine combinations,the heading date of proso millet of is around July 25,flowering is about August 3,mature in about September 7.The differential that fist day and the last day of growth stage up in nine combinations is 4 days.