A lubricant for aluminum processing is disclosed which contains a mineral oil having an aromatic content of not more than 5% by volume, a naphthene content of 10-85% by volume, an initial boiling point of not less than 150 DEG C, a final boiling point of not more than 320 DEG C, a difference between the initial boiling point and the final boiling point of not more than 100 DEG C, and a kinematic viscosity at 40 DEG C of 1.2-3.0 mm<2>/s.