Abstract: Three trial factors,mowing frequency,nitrogen rate and mixed seeding ratio of legume-grass,were selected to construct the integrated management optimization model for mixture pasture of Trifolium repens L.cv.Haifa and Dactylis glomerata L.cv.Nayong.The optimal management factors were determined,and the nutrients of the mixture pasture were analyzed.The best trial program for the mixture pasture of Trifolium repens L.cv.Haifa and Dactylis glomerata L.cv.Nayong are as follows：the mixed seeding ratio of legume-grass,1：3;nitrogen rate,300 kg/hm2;and mowing frequency,6 times.Under these conditions,the fresh forage yield reached 73.00 t/hm2;the crude protein content reached 17.22%;the crude fat content reached 5.34%;and the least weeds invaded the mixture pasture.