After the operation of Three Gorges Reservoir，there has been a problem of sediment siltation in Shangluoqi reach in the fluctuating backwater area of Three Gorges Reservoir，which has a certain impact on the channel conditions.Based on the measured data，this paper analyzes the movement law of the pebble sand wave group in Shangluoqi reach.It is found that the length of the pebble sand wave in Shangluoqi reach is 40-60 m，and the wave height changes about 0.8-1.6 m.According to the physical model experiment，the channel regulation scheme is proposed.The regulation results show that this scheme can effectively improve the navigation conditions of Shangluoqi reach，and the channel regulation effect is excellent.