Tube loading and unloading device for drill floor of automatic workover rig for offshore platform

The invention discloses a tube loading and unloading device for a drill floor of an automatic workover rig for an offshore platform. The device comprises a drill floor base, a tube loading and unloading device, a drill floor manipulator and a hydraulic control system, wherein the drill floor base is of a frame structure, and a slide rail I and a slide capable of moving in X and Y directions are arranged on the drill floor base; the tube loading and unloading device is fixed on the slide and can move in X and Y directions; the drill floor manipulator comprises a main arm and upper and lower manipulator devices, the lower manipulator device is mounted on the main arm, and the upper manipulator device is mounted at the top of the main arm and can turn over by 180 degrees; the drill floor manipulator is mounted on the slide rail I of the drill floor base and moves longitudinally along the slide rail I; the hydraulic control system controls the tube loading and unloading device to connect tubes and pull tubes to t