Weifang Port is located in the middle of Laizhou Bay.The depth of beach is shallow and the variation is gentle,and the sediment movement is active.The siltation of sediment has a great influence on the operation and maintenance of the channel.This paper establishes the tidal current model and sediment transport mathematical model for calculation,compares the results with the existing measured data,then further simulates the scouring and silting conditions of the channel to predict the back silting distribution and the silting intensity distribution along the channel.The results show the calculation results of the tidal current model and sediment transport mathematical model are in good agreement with the measured data,and the predicted annual siltation volume of the channel is about 3.913 million m3.