A hot rolling line configured to roll a strip by sequentially threading the strip through a plurality of rolling mills (11, 12) arranged in tandem, the hot rolling line comprising: a plurality of split rolls provided at least in one of spaces between the rolling mills (11, 12), the split rolls each being capable of rotating about a roll axis parallel to a work roll axis direction of the rolling mills (11, 12) and coming into contact with the strip; a pair of left and right torque detectors (67a, 67b) configured to detect torques acting on left and right ends of each of the split rolls respectively when the split roll comes into contact with the strip; a strip contact roll pick-out unit configured to pick out each split roll being in contact with the strip; and a torque difference calculation unit configured to calculate a torque difference between the left and right ends of the split roll picked out by the strip contact roll pick-out unit; characterised by a meandering torque elimination unit configured to calculate shape torques by eliminating meandering torques respectively from the torques at the left and right ends of the split roll picked out by the strip contact roll pick-out unit, the shape torques generated at the left and right ends of the picked-out split roll by a shape of the strip, the meandering torques generated at the left and right ends of the picked-out split roll by meandering of the strip; and a screw-down leveling control unit configured to control the meandering of the strip by adjusting screw-down leveling of at least one of the rolling mills (11, 12) disposed upstream and downstream of the split rolls in a strip rolling direction, on the basis of the torque difference calculated by the torque difference calculation unit, and to also control the shape of the strip by adjusting the screw-down leveling of at least one of the rolling mills (11, 12) disposed upstream and downstream of the split rolls in the strip rolling direction, on the basis of the shape torques calculated by the meandering torque elimination unit. a plurality of split rolls provided at least in one of spaces between the rolling mills (11, 12), the split rolls each being capable of rotating about a roll axis parallel to a work roll axis direction of the rolling mills (11, 12) and coming into contact with the strip; a pair of left and right torque detectors (67a, 67b) configured to detect torques acting on left and right ends of each of the split rolls respectively when the split roll comes into contact with the strip; a strip contact roll pick-out unit configured to pick out each split roll being in contact with the strip; and a torque difference calculation unit configured to calculate a torque difference between the left and right ends of the split roll picked out by the strip contact roll pick-out unit; characterised by a meandering torque elimination unit configured to calculate shape torques by eliminating meandering torques respectively from the torques at the left and right ends of the split roll picked out by the strip contact roll pick-out unit, the shape torques generated at the left and right ends of the picked-out split roll by a shape of the strip, the meandering torques generated at the left and right ends of the picked-out split roll by meandering of the strip; and a screw-down leveling control unit configured to control the meandering of the strip by adjusting screw-down leveling of at least one of the rolling mills (11, 12) disposed upstream and downstream of the split rolls in a strip rolling direction, on the basis of the torque difference calculated by the torque difference calculation unit, and to also control the shape of the strip by adjusting the screw-down leveling of at least one of the rolling mills (11, 12) disposed upstream and downstream of the split rolls in the strip rolling direction, on the basis of the shape torques calculated by the meandering torque elimination unit.