The varieties suitable for planting grass and raising sheep can be alfalfa, 70 pairs of rye and Pinus sylvestris var. mongolica per grazing. Clover, Pennisetum, Rumex and other forage varieties with high yield, high quality and strong adaptability. Under normal circumstances, three acres of forage can feed 15-20 adult sheep all year round. The reproductive speed of sheep is slow, and the annual growth rate is only about three times that of ewes at the beginning of the year. Therefore, the planting area of pasture depends on the number of breeding sheep and the development speed, so as to meet the demand and not waste. In order to ensure that sheep can eat fresh green feed all year round. The following modes are often used in production: (l) The reasonable combination of alfalfa and 70 rye can ensure the balanced supply of green feed for sheep all year round. (2) Rumex K-L hybrid Rumex interplanting ryegrass or 70 rye in the field. Adult sheep need about 4 kilograms of green feed every day, and feeding too much green grass is easy to cause diarrhea. In the case of sufficient fresh materials, the proportion of bran in concentrated feed should be appropriately increased (bran should account for about 40% of the total concentrated feed). Rumex K- 1 hybrid Rumex has high water content, so it should be properly controlled when feeding. Alfalfa and clover are easy to cause swelling and pain when fed alone, so they should be fed together with other grasses. Sudan grass and Mexican corn seedlings contain hydrocyanic acid, so they should be aired a little after harvest and before feeding.