Aiming at the disadvantages of the traditional aftervalve compensation load sensitive hydraulic system with lower pressure side pressure compensation valve, such as high temperature rise, low service performance and low service life, an improved aftervalve compensation load sensitive hydraulic system with two liquid resistance shunt in parallel was proposed. AMESim simulation software was used to build the system model and the simulation analysis was carried out.The results show that under the same working conditions, the improved load sensitive system can flexibly reduce the energy loss of a single pressure compensation valve, and improve the performance and service life of the system and components.The conclusion provides reference for the optimal design of the aftervalve compensation load sensitive hydraulic system.