The welding workbench is composed of cabinet, steel plate work surface, three-axis module (including: hanging structure and superimposed structure), coupling fiber support rod, drag chain, profile bracket, display bracket, fiber line support rod, welding head connector; the three-axis (X, Y, Z) of the work is linked to drive the welding head to move, to achieve the rapid welding of the workpiece, it can complete the welding of point, straight line, circle, square or any figure trajectory composed of straight line, arc. According to the product size, the welding work