With the four way reversing valve combined with cartridge valve as the research object, the theoretical analysis of the reversing control process was carried out and the mathematical model was established for the main component cartridge valve. The simulation model of the reversing valve was modeled based on HCD library in AMESim. The rationality of the simulation model was verified by comparing the reversing cartridge valve with the normal reversing valve.Based on this,the effects of the spring stiffness and damping coefficients on the opening of the cartridge valves and the dynamic performance of the commutation process were studied. The results show that the steadystate flow force causes the flow fluctuation after the cartridge valve is opened, and adjusting the spring stiffness and damping coefficient can reduce the reversing time and smooth flow fluctuations.