A hierarchical pore nanoporous copper loaded cuprous oxide nanowire composite material is a thin belt and comprises an amorphous matrix, nanoporous copper which covers the amorphous matrix, and a porous cuprous oxide nanowire which is loaded on the surface of the nanoporous copper, wherein the cross section of the composite material is of a five-layer structure, and the intermediate core layer isthe amorphous matrix; the nanoporous copper covers the surfaces of two sides of the intermediate core layer; the porous cuprous oxide nanowire is loaded on the surface of the nanoporous copper at thetwo sides; the nanoporous copper layer at one side is 6-12 microns in thickness; the flexible belt is 20-40nm in width; the pore diameter is 15-30nm; the nanowire layer at one side is 3-12 microns inthickness; the nanowire is 5-10 microns in length and 5-10nm in width; nanopores being 0.5-2nm are distributed in the nanowires. The method is simple in processes, and short in preparation period; theprepared composite material is high in mechanical completeness and can be recycled, so that the economic benefit is improved.