The present invention relates to a large forging ring lifting tool, and particularly a ring lifting tool with function of mechanical control. The lifting tool comprises three or more than three lifting tool beams, support rods, support arms, hooks and a supporting plate. The beams are suspended below a bearing plate through zippers and/or tension springs. One end of the beam is suspended with the support arm. The bottom of the support arm forms a hinged connection with the hook. The other end of the beam forms a fixed connection with the outer wall of a sliding rod, wherein the sliding rod has a hollow tubular structure, and is perpendicular to the beam. The distances between the center of the sliding rod and the ends of the suspended support arms of various beams are the same. The internal hollow of the sliding rod is sleeved with a tension rod, wherein the tension rod penetrates the sliding rod. The lower end of the tension rod is fixedly connected with the supporting plate. A sliding sleeve is sleeved on the outer wall of the sliding rod. The lower end of the sliding sleeve is fixedly connected with the supporting plate. The sliding sleeve forms a hinged connection with the support arm by the support rod. The ring lifting tool of the present invention is convenient to use, and the operator can be far away from the ring operation by using the ring lifting tool of the present invention.