NOVELTY - The hydrogen permeable module (10) comprises a membrane (1) that permeates hydrogen by constantly keeping a pressure of a primary side to a pressure that is equal to or more than a pressure of a secondary side, a support (3) having a surface (3a) and hydrogen permeable pores, and two module frames (2). An outer peripheral part of the membrane is restricted, and an inside of the outer peripheral part of the membrane is not restricted so as to be capable of expanding to the secondary side. The support surface is provided at the secondary side, and follows a shape of the membrane.    USE - The hydrogen permeable module is useful for separating and purifying hydrogen, which is useful as a fuel for a fuel cell and for the production of semiconductors, optical fibers and chemicals.    ADVANTAGE - The hydrogen permeable module has improved strength thus capable of producing a large amount of high purity (100%) hydrogen at low cost, allows the hydrogen permeable membrane to be freely deformed, and prevents the generation of crease and cracks by causing a whole permeable part of the hydrogen permeable membrane to expand from a primary side to a secondary side.    DETAILED DESCRIPTION - The hydrogen permeable module (10) comprises a membrane (1) that permeates hydrogen by constantly keeping a pressure of a primary side to a pressure that is equal to or more than a pressure of a secondary side, a support (3) having a surface (3a) and hydrogen permeable pores, and two module frames (2). An outer peripheral part of the membrane is restricted, and an inside of the outer peripheral part of the membrane is not restricted so as to be capable of expanding to the secondary side. The support surface is provided at the secondary side, and follows a shape of the membrane, which is expanded to the secondary side by virtue of hydrogen absorption. The two module frames sandwich the hydrogen permeable membrane to restrict the outer peripheral part of the hydrogen permeable membrane. An INDEPENDENT CLAIM is included for a method of permeating hydrogen using the hydrogen permeable module.    DESCRIPTION OF DRAWING(S) - The figure shows a cross-sectional view of a hydrogen permeable module.    Hydrogen permeable membrane (1)    Module frames (2)    Support (3)    Support surface (3a)    Hydrogen permeable module. (10)