The utility model provides a reject device of steel billet on rolling line furnace delivery table, belongs to steel rolling equipment technical field for reject the steel billet on rolling the line furnace delivery table. Its technical scheme is: the hydro -cylinder base with get rid of same one side that the steel rack lies in the roll table, the hydro -cylinder base is in the below of getting rid of the steel rack, the cylinder body of hydro -cylinder is connected with the hydro -cylinder base through the axis of rotation, connecting rod axle bed fixed mounting is on getting rid of the steelrack, the connecting rod passes through the connecting rod axis of rotation to be installed on the connecting rod axle bed, the one end of connecting rod and oil cylinder push rod's front end are rotatable coupling, the other end of connecting rod lies in between two rollers of roll table, the upper surface of connecting rod is less than the roller surface. The utility model has the characteristics of technical scheme scientific and reasonable, simple structure, practicality by force, not fragile, prolonged the life of equipment, can reject the steel billet fast effectively, reduced to have reduced manufacturing cost because of operating the harm that causes the steel billet, had wide application prospect and huge economic benefits in the production of rolling the line.