Aiming at problems of high energy consumption,nonlinear friction and steering engine’s movement disturbances in valve- controlled electro-hydraulic load-simulation system,a double-pump-controlled scheme was proposed,and the sliding mode control was adopted to ensure the robustness of system.The mathematical model of double-pump sub-chamber control electro-hydraulic load-simu lation system was established.On this basis,aiming at problem of poor dynamic characteristics of the single-pump control system,force- total pressure compound control strategy was designed to make it have similar dynamic characteristics as the valve-controlled system.For the poor tracking effect problem caused by the chattering of traditional sliding mode control,an equivalent sliding mode controller based on fuzzy reaching law was proposed,and its stability was analyzed theoretically.Finally,through co-simulation,the feasibility and effectiveness of designed control strategy and controller were verified.The results show that the proposed compound control electro-hydraulic load-simulation system has good tracking effect and it can significantly reduce the system energy consumption.