Case Study:The Sutong Bridge project started from the Xiaohai Interchange of Tongqi Expressway, and ended at the Dongpu Interchange of Sujiahang Expressway. The total length of the route is 32.4 kilometers, mainly composed of the North Shore Connection Project, the Cross-river Bridge Project and the South Bank Connection Project. It has a total length of 8206 meters and is the largest cable-stayed bridge in the world. It is such a vast project, that in the layout and construction of the monitoring, Sutong Bridge project organizers especially focusing on the qualifications and reputation of the bidding enterprises in the bidding. After the results of the multi-party competition, Hengpeng stood out among many outstanding enterprises with its excellent enterprise strength and good reputation, providing a complete monitoring solution for Sutong Bridge.