Abstract: An interaction model of maglev vehicle-bridge system was built to calculate dynamic magnetic forces of maglev vehicles, and the calculated forces were input into a finite element model of the pier foundation of a viaduct to obtain ground vibration responses. Numerical results show that the attenuation law of ground vibrations induced by maglev vehicles are similar to that induced by wheel-rail vehicles, except that there is not a rebound zone about 25 m away from the track centerline. The effect of vehicle speed on ground vibrations is significant: the ground vibration at the same point increases by about 10 dB as the vehicle speed increases from 125 km/h to 430 km/h.