Not to give a harmful influence on a metallic foil shape after it is controlled even when pressure distribution in a width direction is uneven due to an inadequate condition of a bridle roll or an ironing roll.

In this metal foil manufacturing method which makes a shape control by using a sensor roll 2, an ironing roll 4 pressing down position on a metal foil take up coil which is taken up by the take up coil via the sensor roll 2 and a bridle roll 3 is set at a position separated 50 mm or more from a metal foil contacting point, and with an angle 50° or less between the foil contacting point and the take up coil 5 center seeing from the center of the coil 5 and/or two-five bridle rolls are installed between the sensor roller 2 and the ironing press device 4 wherein the metal foil 1 is rolled and taken up by the take up coil 5 via the sensor roll 2 and the bridle roll 3, for carrying out the metal foil rolling.