As is known, the future of grass yield resource development and management of the grassland is up to the exploration and scientific management of the grassland. To this end, the present paper aims at a discussion on the possibility and potential to increase the grass yield of the northern Tianshan grassland by using a new approach known as 3S(RS GIS GPS) system. First of all, we have made systematic observation of the four types of grasslands in northern side of Tianshan, for their respective green herba...