Aiming at the navigation-obstruction problem by sandbar near the Zhaohe River estuary,we adopt both field data analysis and 3-D flow sediment model to investigate the characteristics of sediment transport under wave and current,and discuss the layout of channel regulation scheme. Results show that wave breaking in shallow water will increase sediment concentration at the Chaohu Lake. Under the action of wind-induced lake current,the nearshore sediment is characterized by wave lifting sediment and lake current transporting sediment. Combining with the practical experience of channel regulation,we put forward the idea of integrating channel regulation with dredging. By evaluating various schemes,we know that the dike-building scheme can obviously reduce the siltation amount of the channel,and the bilateral dike-building scheme shows a better effect. The high bilateral dike scheme with gentle slope scheme is recommended through comprehensive analysis.This research will provide technical reference for similar channel regulation near the river estuary into the lake.