Abstract: Taking the typhoon “Damrey” hitting land of Jiangsu Province as a case history， based on a typhoon parameter model, the third generation wave model and a hydrodynamic mode1 on the basis of a shallow water equation, simulation study of the storm surge in Jiangsu sea waters is carried out in this paper. The typhoon landed on Lianyungang waters of Jiangsu sea waters. Firstly, the gradient wind filed of the typhoon “Damrey” was computed by a Jele wind parameters model, then the NECP ambient wind field and gradient wind field are compounded, and the typhoon “Damrey” field was formed. Model analysis indicates that there are good fitting results between the simulated values and the measured values of the typhoon data. And then, the wave parameters of Jiangsu sea waters during typhoon have been calculated by a wave model, which was driven by the typhoon wind field. At the same time, the tidal current of Jiangsu sea waters during typhoon was simulated with a shallow water equation. Last, a study of the water level fluctuation of storm surge induced by the typhoon “Damrey” in Jiangsu sea waters has been carried out. The analysis results show that the largest storm surge occurred on Guanhe River estuary during the tyohoon, which is up to 1.9 m. The largest surge of the observation point of Jiangsu sea waters increases before decrease in the storm surge from north to south Jiangsu Province, due to the impacts given by the typhoon centre.