In order to explore friction and wear properties of slipper pair in high pressure piston pump, a friction test platform of the slipper pair needs to be set up. Aiming at operation requirement of the friction test platform, an electrohydraulic control system is developed, including design of hydraulic system, design of system control circuit and development of corresponding software. In order to implement accurate control of pressure value of the electrohydraulic system, proportion integration and differential (PID) algorithm was introduced, and it was known that the pressure value controlled by the PID algorithm approached the set value very well after 2 603 times iteration calculation. The development results show that the electrohydraulic control system can meet the operation demand of friction test platform of the slipper pair, thus, hardware support can be provided for studying on friction and wear properties of slipper pair in high pressure piston pump.