Remote sensing (RS), global positioning system (GPS), and geographic information system (GIS) can be applied to monitoring and analysis of waterway engineering projects. If the relative parts derived from these three separate techniques are combined efficiently, a powerful comprehensive technique system can be constructed to supply information on dynamic changes of riverside, beach, current and sediment of the Changjiang River. It can provide panoramic, multi-level, reliable, precise and real-time information for the development of the “golden waterway”, facilitating to understand speedily and accurately the impacts of the engineering project on the change of the river and to provide economic and reasonable river channel improving project. Meanwhile, the construction of a digital platform of information service, sharing the resources of general surveying, monitoring and analysis, is favorable for improving the Changjiang channels’ support capabilities and service quality. The platform will lay a solid foundation for the “digital waterway” and promote the development of Changjiang channel in a sound and rapid way.