In recent years，the Yangtze River sediment has reduced significantly，and the changes of hydrodynamic conditions of water and sediment may accelerate the siltation atrophy rate of Fushan waterway.Due to the lack of effective control of Tiehuangsha，there still exists a possibility of being broken up.To meet various needs，we carry out the Tiehuangsha regulation project.Based on the analysis of the riverbed evolution，we explore the impact of the regulation project on the waterway，which is of great significance on the maintenance of the stability of the deep channel in the Yangtze River.