To provide a method for producing a laminate comprising a laminated resin film and a rubber sheet in which the surface of the resin film after adhesion is smooth without using an adhesive in the adhesion between the resin film and the rubber sheet.

The laminated resin film in which a polyethylene resin film is laminated on a polyamide resin film is laminated on the uncured rubber sheet containing an organic peroxide so that the polyethylene resin film contacts the rubber sheet, and the laminate is placed in a molding mold. Next, the laminate is heated at 140-200°C, pressurized, and bonded, and the laminate comprising the laminated resin film and the rubber sheet in which the surface of the resin film is smooth is obtained.