The storm surge disaster caused by No 0312 Typhoon“KROVANH”is the worstsince 1980 in Zhanjiang.In this paper,the author makes an initial analysis on the causesof formation,tide level,surges of this tropical storm who applied dynamics,hydrologystatistics on such meteorology data as the typhoon’s moving path,landing points,windpower and the air pressures.Thus,certain relations between the typhoon and the stormsurge are concluded that the typhoon’s wind power,center pressures,landing position andthe wind’s last time would clearly prescribe the storm surge.