In order to reveal the influence law of the curved surface shape parameters of the pad on the dynamic characteristics of the ship tilting pad thrust bearing,a transient thermo-hydrodynamic lubrication model of the tilting-pad thrust bearing was established,and the calculation method of the bearing stiffness and damping coefficient was studied and verified by the axial disturbance method. Six types of pad surface shapes were designed,and the influence of different types of pad surface curvature on the dynamic characteristics of thrust bearings was simulated and analyzed. The results show that with the increase of excitation frequency,the bearing stiffness coefficient increases and the damping coefficient decreases. Under the same excitation frequency,when only considering the change of the surface shape in one direction,the increase of the value of circumferential surface bulge can increase the oil film thickness and reduce the stiffness and damping coefficient of the bearing. However,the increase of the value of radial surface bulge has little effect on the stiffness and damping coefficient of the bearing. When only considering the radial surface sag,the damping coefficient increases with the increase of the concave amount and can reach the maximum. When both radial and circumferential surface changes are considered,the circumferential bulge is the main factor of influencing the bearing.