To meet the performance requirements of the self-propelled blueberry picking machine,a walking hydraulic system of the self-propelled blueberry picker was designed.The main parameters,structure,working principle and workflow of the machine were briefly introduced.The selection of the main components of the walking system was completed.The modeling and simulation of the walking hydraulic system were carried out by using AMESim,and two working conditions of left front wheel skidding and left double wheel skidding were simulated.The simulation results show that under the condition of left front wheel skidding,the front flow forced shunt can be realized,so as to help the picking machine get out of the skid state;in the left double-wheel skidding condition,the machine flow can be forced to split,so as to help the picking machine out of the skid state.It meets the design requirements and provides a reference for the anti-skid design of the walking hydraulic system of self-propelled blueberry picking machine and other self-propelled picking machines.