Abstract: A method for manufacturing a decorative molding having an outer surface layer with a round peripheral edge, comprising preparing a desired shape of decorative base plate which has an outer decorative layer and a mounting surface of a plastic layer which shrinks when heated, pouring thermo-setting liquid plastic onto the outer surface of the decorative layer of the base plate to coat the outer surface with liquid plastic, and then heating the liquid plastic to cure the same and heating the plastic layer of the base plate so that a predetermined amount of shrinkage of the plastic layer takes place.