With the gradual decrease of available shorelines along the Yangtze River,there is an urgent need to develop some shorelines in complex conditions,and many of which are required to have their branches navigable as a basis.Nowadays we advocate green & harmony waterways,so to carry out the feasibility study on the development and utilization of the branches of the Yangtze River trunk waterway can not only serve for the coastal economy,but also for waterway resource protection.For Jiangkou branch waterway which has a strong demand for development，we conduct a study on the channel scale and maintenance dimensions based on the bed evolution analysis,channel condition check,as well as the development & utilization feasibility analysis,and predict further the social and economic benefits due to the opening of the branches,which have great practical value and broad application prospects.