A 3D baroclinc ocean model is used to model the ocean current around the Kuroshio area on the condition of successively anomalous East Asia winter monsoon,some significant results are obtained,and the influence of strong(weak) winter monsoon on sea surface height(SSH),sea surface temperature(SST) and sea current around the Kuroshio area is analyzed preliminarily.The results show that the strong winter monsoon will decrease the gradient of SSH,and change the characteristics of SST,which has influence on the sea current,especially in a shallow and closed sea area such as the South China sea.The strong winter monsoon supresses the development of the Kuroshio current,on the contrary,it strengthens the other two warm sea current systems,i.e. the Tsushima Warm Current and Yellow Sea Warm Current.