PURPOSE: To provide a plate where damages on the plate surface generated in forming the bead part are reduced to the minimum, and the beads with excellent appearance are provided by making the radius of curvature of the peripheral part of the bead larger than that of the bead tip part in the section in the width direction of the bead.

CONSTITUTION: A punch 8 is pressed up by a cylinder rod 11, and a work 1 is held by a female die of an upper die 6 to be pressed. Because the work 1 is restricted by the upper die 6 and a lower die 7, the part between the parts held by the dies is formed so as to be along the shape of the upper die 6 while being extended by the punch 8. The radius of curvature of the peripheral part of the bead of the upper die 6 is larger than that of the tip of the bead, and for example, when the material of the work 1 is SUS, and the thickness is 1.5mm, the bead is formed where the radius of curvature of the tip part of the bead is 5mm, the radius of curvature of the peripheral part of the bead is 10mm, and the height is 8mm.