Rolling method and rolling apparatus of the metal sheet

Rolling method of the metal plate material, measured rolling direction force and the rolling load acting on one of work roll chock of at least the upper work roll or the lower work roll, the offset force component is calculated from the rolling load and the rolling direction force calculating a difference value between, so as to eliminate the difference value, the roll peripheral velocity of the upper and lower work rolls, the friction coefficient between between the said upper and lower work rolls material, the upper and lower surfaces a temperature difference of the material, and the rolling controlling at least one selected from the incidence angle of the plate to the machine.