The utility model discloses a rotary welding platform. Workbench, a plurality of handles are evenly and fixedly connected to the side wall of the workbench in the circumferential direction. A centralthrough hole is formed in the workbench; the central through hole is sleeved with a screw rod; the aperture of the central through hole is larger than the outer diameter of the screw; one end of the screw rod is fixedly connected to the base; the screw rod is sleeved with a bearing and a connecting pipe; the screw rod is in threaded connection with a nut; the bearing, the connecting pipe and the nut are all located between the base and the workbench. A plurality of supporting rods are fixedly connected to the outer wall of the bearing, one ends of the supporting rods are fixedly connected to the bearing, the other ends of the supporting rods are fixedly connected to the bottom face of the workbench, one end of a connecting pipe is fixedly connected with the inner wall of the bearing, the other end of the connecting pipe is connected with a nut, and the problem that in the prior art, the stability of parts is difficult to control during welding is solved.