Abstract: According to the model of steady wind current of the shallow waters suggested by A.F.Felizenpaum,the wind current of the Tpiwan Straits is calculated in this paper.There are altogether ninety-six computing stations in the whole waters.The step of space is 37.4km.The wind speeds are:the greatest average wind speed is 19.2m/sec in the north of the Straits,16m/sec in the south in winter and 6 m/sec in summer.The coefficient of vertical momentum exchange is only the function of horizontal coordinates.