ThestormsurgedisasterinTieshanBayisfrequent.Inordertostudythecharac-teristics of storm surge in this area， a high resolution numerical model was established based onDelft3D hydrodynamic model and Holland typhoon model.The accuracy of the model was validated with the simulation of storm surge induced by typhoon“Ram ma sun”(1409) and“Kalma eg i”(1415) .The result shows that the storm surge inside the bay is grea-ter than outside because of the shape of Ties han Bay which is like a semi-enclosed horn， the maximum value inside the bay reached 3.5m， so more attention should be paid to storm surge disaster prevention and mitigation work inside the bay.At the sametime， the storm surge in Ties han Bay is sensitive to the typhoon parameters， the greater the typhoon in ten-sity and the closer the route to Ties han Bay， the greater the set-up is.