Hydraulic-driven multi-joint industrial robot

The invention discloses a hydraulic-driven multi-joint industrial robot. The hydraulic-driven multi-joint industrial robot comprises a connecting rod part I, a connecting rod part II, a connecting rod part III, a connecting rod part IV, a connecting rod part V and a connecting rod part IV as well as a hydraulic control part VII which are connected in sequence, wherein joints of the connecting rod parts are connected through rotary joints; each rotary joint is connected with a hydraulic oil cylinder, and a coder is mounted on each rotary joint; a double-finger grip is arranged on the connecting rod part VI, the fingers of the grip are connected with a linear hydraulic oil cylinder; an oil path of each hydraulic oil cylinder is communicated with the hydraulic control part VII, and an electro-hydraulic servo valve is arranged in the hydraulic control part. The robot adopts a fully serial structure form and has six rotary joints, the coder is mounted on each rotary joint, and the grip is mounted on the tail end, so that a load/dead load ratio is large. The hydraulic-driven multi-joint industrial robot is especially suitable for transporting, stacking or other large-load working stations or being mounted on a mobile carrier as a mobile operation mechanical arm.