Tibet is a vital ecological security barrier in China, as well as the core of the Qinghai-Tibet Plateau. In cause of the high altitude, low temperature, and drought climate, Alpine ecosystem in Tibet is almost the most vulnerable ecosystem under the effects of natural and artificial factor in the world. Despite controlling the grassland degeneration and land desertification is still the top priority of the protection and construction of ecological security barrier in Tibet, it is difficult to put that into effect. To tackle this issue, we start the national key research and development program, Ecological Restoration and Reconstruction Technology for Degraded Alpine Grasslands in Tibet (No. 2016YFC0502000), in the special research project of Ecological Restoration and Protection of Typical and Vulnerable Ecosystem. Based on the study of ecosystem evolution and mechanism, our project focuses on alpine grassland restoration, land desertification management, ecological industry and ecological livestock husbandry development under distinct degradation situations. The project will develop an integrative system for ecological restoration and reconstruction technology in degraded alpine ecosystem at county level, which can promote ecosystem function and optimize management structure of ecosystem adaption. Our results will provide a technological support for the protection and construction of ecological security barrier in Tibet.