The problem of the environmental vibration induced by rail transit has been a new subject in the area of civil engineering.Based on the field test that runs at Qixia town

in Nanjing city

the time histories of the ground vibration due to different types and velocities of the train are obtained in this paper.The frequency character and attenuation of ground surface velocities are also generalized.The transfer path of the traininduced environmental vibration waves is analyzed to give reference to the further research of the control of rail transit vibration.