The invention belongs to the technical field of rolling steel, and particularly relates to a method for eliminating the crack defect at the hot-rolled edge of fine-punched steel. The method comprisesthe steps that a fine-punched steel cast billet discharged from a production line is directly put into a heating furnace, heating is conducted on the fine-punched steel cast billet in the heating furnace, and the charging temperature is controlled at 550-700 DEG C. According to the method, corner mass repairing and grinding equipment is not input, the crack defect at the hot-rolled edge can be eliminated only through the process optimization on the basis of the existing equipment, and the characteristics of being high in product quality, economical, efficient and practical are achieved.