In view of the high-precision positioning technology for the navigation mark，channel topography，obstruction and other typical elements of the channel，and combining with popularization and application of Beidou foundation enhancement system，we integrate SPP，RTK，DGNSS，PPP and other high-precision positioning technology to study the positioning accuracy of typical channel elements in the Yangtze River channel and put forward integrated technical scheme for navigation and positioning of the Yangtze River for the first time.Taking the advanced nature，operability，adaptability of related positioning techniques into account，we carry out the experimental research in the Yangtze River channel and develop the application program to solve problems of positioning technology of navigational aids，mobile information collection facilities，ships，etc.，to improve the reliability of information perception channel elements，and avoid mistakes or occurrence of not meeting the application requirements due to insufficient positioning accuracy，so to enhance the channel maintenance management and integrated services comprehensively.