Fixing device for cantilever I-shaped steel

The utility model relates to a fixing device for overhanging I-shaped steel, which comprises a traction rope, a suspension clasp and a clamping piece for clamping the I-shaped steel, and the suspension clasp and the clamping piece are respectively and fixedly arranged at two ends of the traction rope; the suspension clasp comprises a connecting part and a hook part, the connecting part is connected with the traction rope, the hook part is provided with a head end and a tail end, the head end is connected with the connecting part, and the tail end can be clamped into a lug plate hole of the I-shaped steel. The pulling rope is pulled into a room for fixing the I-shaped steel, the suspension clasp and the clamping piece extend out of a building structure, the suspension clasp is clamped into a lug plate hole of the cantilever I-shaped steel, the clamping piece clamps the anchoring end of the cantilever I-shaped steel, a lifting hook of a tower crane is connected with the pulling rope, and the I-shaped steel is p