For the multi-way directional valve,excessive steady-state flow power will cause the spool clamping and the operability of the directional valve to decrease.Base on AMESim and Fluent co-simulation,it is found that the peak of steady-state flow power usually occurs when the valve opening is small,tending to close the valve port;steady-state flow force accounts for 25.12% of the maximum operating force in reset process of spool valve;under the influence of steady-state flow force,the spool will obtain too large control force,which destroys the linear relationship between spool stroke and the reset spring force.Aiming at this situation,based on flow passage reconstruction method and special valve cavity method,a steady-state hydraulic power compensation method was proposed for spool valve,which was to set a kind of baffle boss on the valve core.The flow field simulation results of the improved spool show that the larger the diameter of the baffle boss is,the more obvious the effect of reducing the steady-state hydraulic force is,which can be reduced by 65.18% at most;however,too large diameter of the baffle will change the pressure characteristics of the multi-way directional valve,which makes the improvement effect not ideal.