During the past several decades, the traditional agriculture structure has been unsustainable since decrease in grain consumption and increase in animal food consumption, resulting in a large number of grain to be used as forage. Grasslands and animal husbandry will gradually become the agricultural mainstream and lead the agriculture to get out of dilemma. Therefore, the cropping structure should be adjusted timely because the lower productivity of grassland for animal husbandry that is far not satisfied for human needs. Understanding how to solve the problems of “three rural” and “three animal husbandry” is of high importance for facing the growing demands for food structure and the desire for ecological civilization. Although grasslands and animal husbandry has developed vibrantly and achieved some achievements, forage grass and livestock production are considerably low and the industrial capacity is insufficient, and facing enormous challenges. Certainly, the development potential of grass and animal husbandry is also huge due to fast growing market demand in China. Our analysis showed that developing “animal-husbandry development” model by relying on scientific and technological innovation, talent construction, social needs and national policy support, which grasslands and animal husbandry industry will rapidly transform and develop, is an effective way to promote the forage grass and livestock production in China. We also discussed the driven factors about improvement of quality and efficiency and transformation development of grasslands and animal husbandry industry, and proposed seven principles for the development of “animal-husbandry development” in China, including construction of high quality forage production system, breeding and promotion of improved varieties, ecological protection of natural grassland, exploring different regional development modes and optimizing the industrial development environment. Grass animal husbandry development has reached breaking point, must optimize the structure of the industrial for the combination of economic, ecological and social benefits the coordinated development of the green road. At the same time, modern industrial development modes should be introduced to reform the traditional prataculture and agricultural and achieve a sustainable developing stage. Moreover, the society has provided a good opportunity for the transformation and upgrading of grassland and animal husbandry by the construction of ecological engineering and the protection of national food security. These will help us to realize the improvement of efficiency and quality, increase industrial benefits and the industrialization level, finally explore a sustainable development way with effective output, safe production, resource conservation and environment-friendly.