In order to explore the vibration characteristics of the driving mechanism of metering charging machine with double metering plate and verify the design requirements are met, the dynamic characteristics are analyzed by using ANSYS Workbench simulation software. Firstly, the first six natural frequencies and corresponding modes of the driving mechanism are obtained by finite element modal analysis. Then, the resonance of the driving mechanism during the working process is studied by comparing with the external excitation frequency. Secondly, the strength of the cam of the driving mechanism is analyzed by means of transient dynamics simulation. And the stress of the cam during the working process is obtained. The results show that, the driving mechanism will not cause resonance under the external incentive during the working process, and it meets the requirements of modal design. Meanwhile, the cam meets the strength requirements and works safely.