The simulation model of dynamic response characteristics of solenoid valve was established based on Ansoft Maxwell software, and the accuracy of it was verified by experiment. The sensitivity analysis of parameters affecting the dynamic response characteristics of solenoid valve was conducted by the method of integrating ISIGHT with the model, the Pareto of parameters on the dynamic response characteristics was obtained. The multi-parameter optimization design of solenoid valve was carried out based on genetic algorithm, the optimum parameter combination was achieved, and the comparison experimental research of dynamic response characteristics of solenoid valve before and after parameter optimization was conducted by the experimental bench. The result shows that compared with the original parameter scheme, the dynamic response characteristics of solenoid valve after parameter optimization are improved greatly, and the opening and closing response time is reduced by 59.1% and 47.2% respectively.