To provide a molding method for simply molding at a low cost, a molded product which is prevented from the occurrence of voids at the time of molding and has coating films provided to the outside surface and the inside surface having unevenness thereof.

The molding method of a molded product (10), which has the coating films provided to its first surface becoming an inside surface used as the exterior member of a work machine and having unevenness such as a rib or the like, and to its second surface becoming an outside surface, includes processes of: manufacturing an upper molds (2 and 2') for molding the first surface and lower molds (3 and 3') for molding the second surface; coating the cavity surfaces of the upper molds (2 and 2') with coating (6); clamping the upper molds (2 and 2') and the lower molds (3 and 3'); preparing a first mixed raw material by mixing a polyol, a polyamine and water; and mixing polyisocyanate with the first mixed raw material to prepare a second mixed raw material (9) to inject the same in a cavity (8) and subjecting a molded product (10) comprising a urethane urea resin to foam molding by a reactive injection molding method to transfer the coating (6) to the molded product (10).

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