Taking Damazhou waterway as the research object,based on the study of measured data such as sediment,river terrain,etc.，we analyze the basic characteristics of river bed evolution.Focusing on the river bed evolution after implementation of the Jingjiang River regulation project,and combining with the results of the physical model of the Jingjiang phase II regulation project,we predict the development trend.The results show that:after the Jingjiang phase II regulation project，on the right side of Damazhou waterway Bingyin beach tends complete,and the river regime is effectively controlled.