An aluminum fin material (1) for a heat exchanger, which is characterized by comprising a base (2) comprising aluminum or an aluminum alloy, a primer treatment layer (3) formed on the surface of the base (2), and a corrosion-resistant resin coating film layer (4) formed on the surface of the primer treatment layer (3), wherein the corrosion-resistant resin coating film layer (4) comprises a first corrosion-resistant resin coating film layer (4a) formed on the surface of the primer treatment layer (3) and a second corrosion-resistant resin coating film layer (4b) formed on the surface of the first corrosion-resistant resin coating film layer (4a), at least one of the first corrosion-resistant resin coating film layer (4a) and the second corrosion-resistant resin coating film layer (4b) comprises an ethylene-acryl copolymer resin and has a thickness of 1 [mu]m or more, and the corrosion-resistant resin coating film layer (4) has a total thickness of 1.1 to 10 [mu]m inclusive.