To provide a resin-coated aluminum member for a capacitor case in which excellent adhesion of the coating resin film and stable insulation capability are obtained.

In this resin-coated aluminum member for a capacitor case, a chemical conversion layer 2 is formed on an aluminum plate 1, and a resin coating-film 3 is formed thereon. The resin coating-film 3 is made of a thermosetting resin that is constituted by a polyester resin having a number-averaged molecular weight of 8000-28000, having a hydroyl group, and which is crosslinked by a polyol-modified blocked isocyanate compound having a number-averaged molecular weight of 1000-5000. The adhesion property of the resin coating-film is satisfactory, and stable insulation capability can be obtained by not requiring any heat treatment. This resin-coated aluminum member is of high quality, is excellent in productivity, and exhibits a remarkable effect when it is used for a case of an aluminum electrolytic capacitor or the like.