Abstract: Basing on experimental research the movement of the pneumatic precision seed-metering device vibrating plate and seeds in theory were analyzed , The correctness of operating parameters in a steady work state was confirmed by using simulation analysis, The pneumatic vibration disk system simplifying single degree of freedom damped forced vibration, to simulate vibration of experimental data was proposed. Simulation results show that the parameters such as system stiffness and damping vibration can be reacted the normal working state. It provides the corresponding operating parameters and theoretical basis for pneumatic vibration-type precise metering device design.