To provide an inexpensive thin-sheet forming roll with a simple structure that can be suitably used for forming a thin film efficiently and easily.

The thin-sheet forming roll is provided with a metallic elastic outer cylinder 102 composed of an elastically-deformable metal thin-film, each freely-elastically-deformable annular seal member 103, which is provided inside the metallic elastic outer cylinder 102 so as to close both end parts of the metallic elastic outer cylinder 102, and an inner cylinder 105 that has a freely-elastically-deformable spiral member 104, forming a spiral flow path for a cooling fluid, at its outer peripheral part.