Provided are: a molding base material characterized by having at least a fiber-reinforced resin prepreg layer, a fiber paper layer, and a partition layer interposed between the prepreg layer and the fiber paper layer; a molded product obtained using the same; and a production method therefor. The present invention makes it possible to achieve high thermal resistance and heat insulation as well as improved overall space efficiency and weight reduction in a fiber-reinforced resin molded product.