The forging-reinforced composite constructed of a plurality of different kinds of materials, which have compatible polymers comprising crystalline and glass phases at room temperature for the matrices, is a composite, wherein, by being forged in a layer-separated state in which each of the different kinds of materials forms micron-sized fibrous layers that crossed and intermingled three-dimensionally with each other and the arrangement of the crystals in the crystalline phases configuring the matrices having a disordered orientation without anisotropy in a variety of directions, the inherent-properties of the material of each layer are complementarily reinforced. The forging-reinforced composite is manufactured by the production method of the invention in which: a mixed nonwoven fabric wherein microfibers are crossed and intermingled two- or three-dimensionally with each other is manufactured said mixed non-woven fabric is heated under pressure at or above the melting point of the polymers to manufacture compact blocks wherein the microfibers are welded, preserving the relative positional relationships and said compact blocks are forged at a crystallization temperature.
