To provide a metal mold for roll bending process that can simplify a metal mold replacement operation so as to reduce the entire operation time.

Female molds (20 and 20') are respectively comprised of base parts (21 and 21') and a plurality of leaf springs (22). A groove (23) or a recess (23') is formed on a female mold surface of each of the base parts of the female molds. The plurality of leaf springs are stacked one upon another on the female mold surface and are also mounted so as to cover the groove or the recess. A plate-shaped workpiece (30) is set on the leaf springs on the female molds. The plate-shaped workpiece is subjected to roll bending process owing to the fact that by a relative press operation between a male mold and the female mold, the plurality of leaf springs are elastically deformed with an elastic repulsive force capable of plastically deforming the plate-shaped workpiece.