There is disclosed a refrigerator including a vacuum space formed between an outer case and an inner case to improve an insulation function thereof, which includes an inner case that defines an exterior appearance of a storage space, an outer case spaced apart a predetermined distance from the inner case, a vacuum space provided between the inner case and the outer case, with being maintained vacuum, to insulate the inner case from the outer case, a plurality of spacers for supporting the inner case and the outer case space that are spaced apart from each other, and a radiation blocking film provided in the vacuum space, spaced apart from the inner case and the outer case.