The Qinghai-Tibet alpine region is a typical plateau ecosystem with unique features. As an important part of the grassland ecosystem, it plays an important role in the ecological security of the alpine region and the livelihood of farmers and herdsmen. At present, the grassland ecosystem in the Qinghai-Tibet alpine region is seriously degraded. Therefore, ecological restoration of degraded grasslands is the main priority in this area. In recent years, a large number of studies proposed various effective recovery methods, but there is no systematic summary and discussion of local conditions. Based on these findings as well as on the relevant literature, this paper explains the status of degraded grasslands in the alpine region of Qinghai-Tibet in detail, summarizes the main ecological problems of various ecological types in this region, and clarifies the scope of application of different integration technologies and models. We analyzed and discussed the recovery mechanisms of these technologies, measures, and models. Future research of the alpine grassland ecosystem is necessary in order to provide a systematic theoretical basis and technical support for the restoration and control of degraded grasslands in alpine and cold regions of Qinghai and Tibet, as well as to ensure the structural and functional stability of the alpine grassland ecosystem.