Box beam hoisting protection support

The utility model relates to the technical field of protection supports, in particular to a box beam hoisting protection support which comprises a supporting base, supporting legs are arranged at the bottom of the supporting base, a guide plate is connected to the upper portion of the supporting base, a lead screw penetrates through the interior of the supporting base, a nut pair is connected to the exterior of the lead screw, and the nut pair is connected with a nut. A positioning plate is fixedly connected to one end of the nut pair, sliding sleeves are connected to the outer walls of the two ends of the positioning plate, guide rods are fixedly connected to the upper surfaces of the nut pair and the sliding sleeves, and clamping plates are fixedly connected to the upper surfaces of the guide rods. The clamping plates can be driven to move through lead screw transmission, so that clamping and positioning of the box beam are achieved, meanwhile, the stability of the protection assembly is guaranteed, meanwhi