The improved Fujita pressure model is used to calculate the typhoon wind field No.8114,and the MIKE21 SW wave mathematical model is used to simulate the wave field under the typhoon.Through numerical model calculation,the wave situation of the wharf position in the transit of typhoon is provided,which provides the basis for engineering construction.The results show that during typhoon 8114,there was a Northwest gale with a magnitude of 12 or more in the engineering sea area;the effective wave height of Dengbu Island dock was about 2.5 m,and that of Xishan Island dock was about 2.0 m;the wave period was about 4.5 s;the wave directions of Dengbu Island dock and Xishan Island dock were in W—NW direction.From the simulation results of the wave field in the dock waters during the typhoon crossing,it can be seen that the outer sea waves have no obvious impact on the project waters,and the project waters are still affected by local wind and waves in the island.