Abstract: Qinghai-Tibet Plateau is called the last "pure land", but this pure land is facing the danger of "baldness" due to grassland degradation. In this paper, it was found that the main cause of grassland degradation in Qinghai-Tibet Plateau was not climate change and overgrazing, but over-reclamation, livestock trampling and rodent infestation. In this paper, the scheme of restoring degraded grassland in Qinghai-Tibet Plateau was put forward, which includes the combination of reseeding, fertilization and enclosure, the prevention and control of rodents and the scientific raising of livestock. Through these measures, the biodiversity and biomass of degraded grassland can be increased, the soil fertility can be improved, and the dynamic balance of grass and livestock can be maintained, so as to repair the fragile ecosystem of alpine grassland in Qinghai-Tibet Plateau.