The hydraulic NC bending machine adopts welded machine frame, with high rigidity and good elasticity, and has a fine adjustment device, which has weak resistance to eccentric loads. Using ball screw and linear guide rail, driven by servo motor, the rear material positioning is fast and accurate. The height of the stop finger is designed to be adjusted as a whole, which can improve the speed of mold replacement and work efficiency. Related products include mechanical press and hydraulic press.