According to refueling pressure technical target of aircraft fuel system, the refueling simulation system and its control system are designed and implemented. The comprehensive test was carried out on test bench. Taking the approach of bypass shunt and series throttling, the refueling pressure and flow rate were controlled in closed loop by electro-hydraulic servo regulate system. The system data acquisition, processing, output were implemented by LabVIEW software and signal conditioning in upper level. The process control was implemented by using Proportion Integration Differentiation (PID) algorithm. Based on load simulation and two pressure closed loop control channel switch, refueling pressure was made stable on the ground, having good accuracy and stability on refueling joint. Several groups of step response and impact response curve were given by the test. The result shows that the refueling simulation system can provide required refueling pressure for aircraft, which control system precision meets the demanded technical target.