To prevent a foamed molding comprising a foamed layer and a reinforcing material from becoming warped and the peeling of the foamed layer from the reinforcing material from occurring.

When the foamed molding is manufactured, a layer of foaming beads 30 is arranged on both first and second surface sides of a reinforcing material 13. Thus the foamed layers 11, 12 are molded by making the foaming beads 30 foam and at the same time, are firmly bonded to both first and second surfaces of the reinforcing material 13.