Global warming has received great attention from different research community, especially the warming changes of permafrost in Qinghai-Tibet Plateau (QTP) is one of the core study topics of global terrestrial ecosystems in recent decades. Because shifts of permafrost affect water circulation, biological diversity, geophysical process and carbon storage in this fragile plateau region. Permafrost, which has remained two or more years at or below the freezing point, has been considered as an indicator of climate changes. Existing studies lack detailed description of the response of permafrost change to different vegetation types, just focus on the analysis uplift and subsidence of ground surface. In this paper, ground surface deformation of permafrost in different type of alpine grasslands will be explored. The study area is located in Wudaoliang, which is one hinterland zone of QTP permafrost zone. The ground surface deformation of this region is inverted by advanced synthetic aperture radar (ASAR) data and the small baseline synthetic aperture radar interferometry (SBAS-InSAR) method. There were 24 ENVISAT ASAR images acquired from April 7th, 2005 to July 15th, 2010. They were employed to calculated the ground surface deformation, and the results showed that deformation rates of ground surface are primarily between ±8 mm/a. The area of positive deformation rate accounts for 57.70%. In this region, ground surface is uplifted. Conversely, area of negative surface deformation occupies 42.30%, where is subsidence region. The results were demonstrated that SBAS-InSAR technique can provide a useful tool to monitoring the surface deformation of different alpine vegetation types in permafrost regions. Furthermore, the ground surface of alpine grassland is subsidence mainly. And the surface subsidence is large in alpine grassland, compared with alpine meadow. In this study, there were 3 types of remote sensing based ecological indexes (RSEI), including normalized differential green index (NDGI), normalized differential wet index (NDWI) and normalized differential land surface temperature index (NDLI) to research the relationship between ground surface deformation and environmental factors. It is concluded that in QTP the deformation limited factors of alpine grasslands with different vegetation types were different. The surface deformation of alpine meadow might be limited by temperature change, while deformation of alpine grassland might be affected by water conditions. It indicates that region with abundant vegetation is not vulnerable to the ground surface subsidence, in permafrost areas of the QTP. Therefore, future studies should focus on the areas with scarce vegetation. Because there will be taken place land subsidence in these areas, and then the ecological stability in this area will be fragile.