Abstract: The vibration response caused by gas equipment running and superimposed action of adjacent metro train passing is measured on site, and the vibration characteristics of metro line impact on adjacent gas equipment is analyzed. Taking the actual project of a metro line under-passing gas regulator station for case study, the vibration control measure for gas equipment against metro train vibration and its effect are studied and analyzed. Research results show that the vibration velocity amplitude of adjacent gas equipment increases distinctly when train is passing, while the acceleration waveform does not change as much; the frequency of vibration acceleration caused by gas equipment is mainly above 100 Hz, and the main frequency of vibration acceleration caused by metro train is 20 Hz to 80 Hz. Field measurement shows that metro train causes the vibration acceleration level of gas equipment to increase by more than 10 dB.