Provided is a molded article that has both a low specific gravity and high rigidity and further has suppressed wrinkles and scrapes, and a manufacturing method for the same. Hence, provided is a press-molded article manufacturing method for press-molding a sheet-shaped molding substrate that is disposed in a cavity of a molding die and contains reinforcing fibers randomly dispersed in a matrix resin using a press molding machine provided with a molding die that is a convex molding die provided with a cavity formed between a concave mold for forming an opening of a molded article and a convex mold that matches with the concave, and has at least one surface (B) on which a pressure is loaded in a range of 0% to 70% of a pressure loaded on a surface (A) when the pressure loaded on the surface (A) from the press molding machine is 100% with respect to the surface (A) orthogonal to a direction of pressure applied to the molding die from the press molding machine, the press-molded article manufacturing method comprising: a shaping step (III) of loading a surface pressure of 1 MPa or more as an external pressure from the press molding machine to the surface (A); and a pressure holding step (IV) of setting a pressure loaded as an external pressure from the press molding machine on the molding substrate to 0.1 MPa or less without releasing the molding die after the shaping step (III).