Provided are a rolling mill capable of controlling the shape of a plate material more accurately than conventional ones, and a rolling method. The rolling mill for rolling the plate material by an upper and a lower work roll is provided with a coolant jetting unit equipped with plural nozzles disposed at predetermined intervals along the direction of the rotational axes of the work rolls to jet a coolant to the work rolls from the respective nozzles, a roll temperature estimation unit for estimating the mean temperature of the work rolls, a coolant temperature detection unit for detecting the temperature of the coolant, a shape detection unit for detecting the shape of the rolled plate material in a width direction thereof, a shape deviation calculation unit for calculating a deviation between a plate material shape detected by the shape detection unit and a target shape, and a shape control unit for controlling the shape of the plate material by controlling the jet amount and/or temperature of the coolant jetted from the coolant jetting unit on the basis of the difference between the mean temperature of the work rolls and the temperature of the coolant and the deviation between the plate material shape and the target shape.