Modular multi-joint drive-by-wire robot

The invention provides a modular multi-joint drive-by-wire robot comprising a workbench, a plurality of joints connected in series, a jaw and a power mechanism; the bottom joint is arranged on the workbench, each joint comprises a shell and a connecting mechanism, and the two adjacent joints are connected via a rotating shaft fixedly connected with one of the joints; each rotating shaft is provided with a pull wheel; the power mechanism comprises a box body, a plurality of electric pull rods and pull wires connected to the electric pull rods one by one; each pull wheel is connected with one pull wire, and the jaw is connected with one pull wire. According to the modular multi-joint drive-by-wire robot, each rotating shaft can drive one of the joints to rotate and can be closely connected to another joint, and structures between the joints are compact; the pullback length of the pull wires can be accurately controlled by the electric pull rods, the rotating shafts are driven by the pullwheels, the pull wires a