Abstract: The continuous and real-time observation data of CORS base station are processed and analyzed by high-precision data processing software. The horizontal and vertical ground deformation and the change of ground gravity are studied by combining the observation data of atmosphere, surface water and sea level change. By tapping the potential of CORS benchmark station network to monitor the process of geological disasters, we enhance the ability of monitoring and early warning of geological disasters, promote the development of early warning of geological disasters towards quantitative and practical direction, and provide support for major engineering construction and safe operation in Zhejiang Province.