To provide a solid decorative molding article in which positional deviation is not generated when producing a large solid shape formed part, and a production method of the same.

A production method of a solid decorative molding article 30 includes: a step in which a solid sub sheet 5 in which a sub sheet 3 having an adhesive layer 1 is preformed to be molded in a solid shape, and a solid main sheet that is molded by that a part of a main sheet 4 having a larger area than that of the sub sheet 3 is preformed to the same solid shape with the solid sub sheet 5 are prepared, next the solid sub sheet 5 is adhered to correspond to a solid shape of the solid main sheet 6 to form a solid decorative sheet 7; and a step in which the solid sub sheet 5 side of the solid decorative sheet 7 is arranged to correspond to a solid shape of a cavity 9 face of an ejection molding mold, a molten resin is ejected and cooled, and a base material and the solid decorative sheet 7 that are performed by integral molding are obtained.