Based on Binzhou Port field observation data such as water depth,sediment,the dynamic changes and seabed erosion and siltation in Binzhou Harbor are analyzed,and sudden siltation in outer channel and feasibility of channel are discussed.The result shows that siltation in windy days will be the focus and difficulty in Binzhou Harbor.Though in the case of channel dimension and direction with Huanghua port are basically the same,the siltation of Binzhou Harbor will be worse than in Huanghua port.Binzhou Harbor waterway dredging has certain difficulties,and it is really possible to appear “the iron sand” in a certain range outside -6 m isobaths in bad weather conditions.Based on anticipation,particle size is coarser in Binzhou Harbor than in Huanghua port,and clay content is less than the Huanghua port.It is predicted that outer channel excavation(or clearing)is more difficult.