The mobile phone case manufacturing method using the pressing jig, and this for the production of a mobile phone case provided with a sheath and a cradle (cradle) is disclosed. To the disclosed different materials laminated adhesive pressurizing jig is, the lower mold base and a concave inner surface of a formed of an elastic material stacked on top of the lower mold base cradle support layer and, cradle close contact with a protruding shape corresponding to the inner surface of the cradle, one comprising a cradle contact formed on the side of the cradle support layer lower molds, to be arranged on the upper side of the lower mold and possible elevated with respect to the lower mold, the upper mold base is formed of a resilient material with the outer pressure laminated to the bottom of the upper mold base a top mold having a layer, and a sheath attachment portion, and a flange for supporting surround the outer surface of the outer pressure layer to outer shell in close contact forms a holding portion formed on the lower surface of the outer pressure layer into a shape corresponding to the outer surface shape of the cradle , and includes a heater (heater) for heating the adhesive interposed between the cradle and the outer shell, the outer shell portion in close contact To the outer shell it is pressed and brought into close contact with the outer surface of the cradle, and is configured such that the cradle and the outer shell bond the adhesive is heated by the heater.