Because of the effect from the amphidromic point of M2 tidal constituent around Chenshan cape and the amphidromic point of K1 tidal constituent in the middle of Bohai bay, Weihai bay is characterized with a complex current field. Especially, the current field in Weihai bay can be changed dramatically while there is strong wind blowing over. A numerical model is built to simulate the effect of E wind and W wind on the current field.Based on the results from the numerical model, this paper comprehensively introduces how the current speed and the current directions change with the strong wind blowing over, serving as a reference for the navigation, sealiving breeding and pollutant discharge in Weihai bay.