Hydraulic load simulation device with multiple loading modes

The invention relates to the field of hydraulic transmission and control thereof, in particular to a hydraulic load simulation device with multiple loading modes. Comprising a cartridge valve, a two-position three-way electromagnetic directional valve, two proportional pressure reducing valves, ten stop valves, a servo valve, two safety overflow valves, two large-capacity energy accumulators, two high-pressure gas cylinders, two adjustable throttle valves, two small-capacity energy accumulators, four air stop valves, two high-pressure air safety valves, a displacement sensor and a loading hydraulic cylinder. A force sensor and an electrical control box; according to the hydraulic load simulation device, load simulation of multiple working conditions can be achieved, the functions of high-frequency loading of the servo valve and low-overshoot large-load loading of the proportional pressure reducing valve are achieved, and meanwhile the functions of high-linearity and low-noise linear loading and high-precision