The invention discloses a rack core of a steel coil hoisting and transferring clamp. The rack comprises a spindle and two laterally connected fixed legs. A center axle rod is fixed to the middle of the spindle, center through slots are formed in the front and back walls of the center axle rod, a center through block is joined to the inner end of each center through slot, outer rubber pads are connected to the left and right ends of each center through block, a fixed center base is welded to the outer wall of each center through block, rotating shafts are mounted at the upper and lower ends ofthe fixed center base, a joining leg seat is placed on the outer side of the rotating shaft, a laterally connected screw hole is formed in the middle of the joining leg seat in a penetrating manner, direct connecting screw holes are formed in the left and right ends of the joining leg seat, threaded pipes are arranged at the bottom end of each laterally connected fixed leg, and the laterally connected fixed leg is located on the outer side of the spindle. The rack core of the steel coil hoisting and transferring clamp is provided with the laterally connected fixed leg, the spindle can be usedconveniently through the three threaded pipes with same included angles, and meanwhile, the performance of the spindle is better by arranging the two laterally connected fixed legs.