To provide a method where an aluminum fin material for a heat exchange having excellent corrosion resistance and hydrophilicity is produced by simple hydrophilization treatment free from problems from the face of environmental maintenance.

In the method for producing an aluminum fin material for a heat exchanger, the fluorides of the IIa, IIb and IVa group`s metallic elements in the Periodic Table are acted on an aluminum base material subjected to roughening treatment, thus a metallic oxide layer is formed on the base material.