To provide a paste for brazing difficult to peel and excellent in brazeability by containing a photo-curable compound consisting of a multifunctional compound having a plurality of multifunctional groups curable with the energy ray, and using a brazing filler metal powder and a flux together therewith.

A resin composition of approximately 2-200 pts.wt. containing a photo-curable compound consisting of a multifunctional compound is blended in a brazing filler metal powder and a flux powder of 100 pts.wt., and the mixture is contained in a paste for brazing aluminum. The multifunctional compound has multifunctional groups curable with the energy ray such as ultraviolet ray, visible ray and infrared ray, preferably at least two ethylenically unsaturated groups or (metha) aclyroyl groups in one molecule. The photo- curable compound contains a mono functional compound having one functional group in one molecule as necessary, and a photopolymerization initiator. A coating of 5-200 g/m2 is preferably provided on an aluminum.