Abstract:Started from human motion characteristics, the hydraulic drive overall load exoskeleton robot skeleton structure was analyzed. According to the characteristics of the load exoskeleton robot, a complete hydraulic drive system was designed, and the main elements of the selection calculation were carried out as hydraulic system, hydraulic pumps, servo valves and hydraulic cylinders, and etc. Simhydraulics software was used to establish the simulation schematics for hydraulic system of load exoskeleton robot, study and simulation analysis were carried out for the hydraulic system, and simulation results were proved of the rational design of the hydraulic system. In the last, technology challenges faced by the hydraulic drive load exoskeleton robot are analyzed, which provide reference for further design of the hydraulic system.