The utility model discloses a steel jamming fault treatment device for a section straightening machine, belongs to a straightener for metal sections and particularly relates to an auxiliary device for the section straightening machine. The steel jamming fault treatment device is characterized in that a door-shaped frame spans a transport roller table; a crossbeam of the door-shaped frame is parallel to the transport roller table face, and is perpendicular to the center line of a straightening roller of the straightening machine; the crossbeam is sleeved with a pulley mechanism; a load cable passes through the pulley mechanism, one end of the load cable is connected with a steel jamming billet, and the other end of the load cable is connected with a travelling crane. The steel jamming fault treatment device has the advantages that the steel jamming fault treatment device is novel in concept and compact and reasonable in structure; the travelling crane is used to drag a steel wire rope to quickly take out the jammed section, the labor intensity is effectively reduced, the take-out time is shortened and the work efficiency is improved; a roller piece of the straightening roller is prevented from being damaged by gas cutting, the consumption of spare parts is reduced, the production cost is reduced and the production is smooth.