Provided is an anticorrosive polyamide resin composition having excellent anticorrosive capability by possessing excellent adhesive strength to a polyolefin resin and a metal and excellent elongation. The anticorrosive polyamide resin composition contains a resin component that contains 70 to 90 mass % of a polyamide resin, and 30 to 10 mass % of an acid-modified polyolefin resin. A maleic acid anhydride-modified polyolefin resin is preferably used as the acid-modified polyolefin resin. Polypropylene is preferably used as the polyolefin resin.