Abstract: Degradation of grassland in northern Tibet originates from drought．According to observations, grassland in northern Tibet is rich in groundwater resources, but could not be effectively utilized．Through several experimental designs, a set of energy-saving system device for irrigation in arid pasture areas in northern Tibet was developed, hybrid wind-solar complementary system power generation device was used, which was based on innovative clean power generation with energy saving, small occupied area, large coverage area and beneficial to the people in northern Tibet for irrigation and pasture areas, which truly reflected small size and great efforts．