Anti-falling lifting hook

The utility model discloses an anti-dropping lifting hook which comprises a lifting hook body and an L-shaped swing rod hinged to the inner side of the lifting hook body, the L-shaped swing rod is composed of a pair of curved tongues and a pair of force arm rods, the curved tongues and the force arm rods are integrally arranged, the curved tongues are located inside the lifting hook body, and the force arm rods are arranged outside the lifting hook body in a covering mode. The length of the force arm rods is larger than that of the curved tongue, T-shaped positioning rods are hinged to the ends of the pair of force arm rods, a spring and a clamping annular plate are arranged outside the T-shaped positioning rods in a covering mode, the two ends of the spring abut against the T-shaped positioning rods and the clamping annular plate respectively, and a clamping base with a through hole is arranged at the position, corresponding to the clamping annular plate, of the side portion of the lifting hook body. Accordi