【Abstract】 The gradient magnetic field coil is an important component of magnetic resonance imaging system (MRI). Its performance can not only determine the MRI imaging speed but also affect the vibration characteristics of MRI. It is important to understand the gradient timing in typical clinical sequences to analyze the origin of vibration characteristics of MRI equipment. In this paper, the magnetic field rate of change (dB/dt) signal of gradient field in typical clinical imaging sequences is measured by searching coils, and the vibration characteristics of MRI equipment are evaluated by laser vitometer. The horizontal change patterns of device vibration spectrum and gradient slew rate induced by typical clinical imaging sequences were analyzed. The results show that there is a strong correlation between the gradient timing and the vibration of MRI equipment.