The grass industry is the basis for the development of animal husbandry, animal husbandry is the export of the development of grass industry, the development of grass industry and animal husbandry complement each other, the key to solve the shortage of forage grass in animal husbandry lies in the development of grass industry. In the grassland area and the ecotone of agriculture and grazing in China, selecting suitable land and planting artificial grassland can not only solve the problem of insufficient four times of occults, but also greatly relieve the grazing pressure of natural grassland