Manufacturing method of anti-corrosive multi-layered structure material

A manufacturing method of an anti-corrosive multi-layered structure material having an anti-corrosive non-metallic surface layer formed on a metallic substrate layer, wherein non-electrolytic plating of an anti-corrosive metal different in ionization property from the surface metal of the metallic substrate layer is carried out on the surface of the non-metallic surface layer so that the anti-corrosive metal is substituted for the surface metal of the metallic substrate layer through fine pores of the non-metallic surface layer and precipitated only in the fine pores of the non-metallic surface layer without causing useless precipitation of the anti-corrosive metal on the surface of the non-metallic surface layer.