Subway has become an important form of rail transit because of its advantages such as fast speed, punctuality, and large traffic volume. However, the problem of environmental vibration caused by metro has become increasingly prominent. In this paper, a middle school construction project in the curved section of Hangzhou Metro Line 3 was taken as an example. The vibration response analysis of a vertical coupling model of the vehicle-common monolithic track system was carried out by using the finite element software ABAQUS, and the vibration source of track considering the influence of track vertical profile irregularity was obtained. By using the finite element software MIDAS GTS/NX, a three-dimensional finite element model of the twin-parallel curve shield tunnel-soil-pile-building system was established. The vibration response of the system was calculated under the excitation of track fulcrum force, and the propagation law of metro vibration wave and the dynamic response characteristics of buildings were studied. According to relevant environmental vibration control standards, the vibration comfort of buildings was evaluated. The results showed that the maximum acceleration and dynamic fulcrum force of rail are about 40 m/s² and 30 kN, respectively; the vibration of stratum and building are mainly in the vertical direction, and the vibration in the horizontal Y-direction is slightly greater than that in the horizontal X-direction; the ground acceleration decreases gradually with the increase of its distance from the tunnel center line; the dominant frequency of vibration at each building floor is 16-40 Hz; the vibration responses of some building floors exceed the limit requirement of code, and it is suggested that appropriate vibration reduction measures should be taken for metro tracks or buildings.