During the earthquake, the pipe support inside the utility tunnel may cause contact problems due to improper design, resulting in serious damage to the pipe. In this study, a finite element plug-in is developed based on python to simulate the three-dimensional oblique incidence of horizontal non-homogeneous field vertical shear wave (SV wave), which solves the response problem of the internal pipe when the utility tunnel passes through the horizontal non-homogeneous soil during the earthquake, and compares it with the existing scale shaking table test (0°incident angle). The acceleration of the internal pipe, the longitudinal and transverse relative slip between the pipe and the utility tunnel and the strain response mechanism are studied. In addition, the peak acceleration response under different tilt angles and the attenuation effect of energy transfer modes under different supports are deeply studied. The results show that the damage caused by the oblique incidence of SV wave to the internal pipe is more serious, and the damage degree generally increases with the increase of the incident angle, and the control of the relative slip of the pipe can weaken the energy to a certain extent, so it is indispensable to choose a suitable pipe support.