A jig for fixing laminated materials that is used for manufacturing bonded laminated materials by pressing and bonding materials made of laminated membranes by means of a pressing device, comprising: a first fixing member having a pair of first columnar members (11, 11) that are disposed substantially in parallel to the direction the jig is to be transported to the pressing device and a first sheet-shaped member that is stretched between the pair of first columnar members by anchoring the ends to respective faces that extend in the longitudinal direction of the pair of first columnar members; a second fixing member having a pair of second columnar members (21, 21) that face respective first columnar members and a second sheet-shaped member that is stretched between the pair of second columnar members by anchoring the ends to respective faces that extend in the longitudinal direction of the pair of second columnar members; a sealing member that is disposed between the first sheet-shaped member and the second sheet-shaped member that are positioned by the pair of first columnar members and the pair of second columnar members, respectively, to face each other, the sealing member defining a housing space between the first sheet-shaped member and the second sheet-shaped member to house the laminated materials; wherein faces of the jig for fixing laminated materials in the direction the jig is to be transported are flat; wherein an exhaust passage is formed in at least one of the pair of the first columnar members to fluidly communicate with the housing space through an exhaust hole that penetrates the first sheet-shaped member and the exhaust passage is connected to an exhaust device; and wherein, when the laminated materials are located in the housing space and the space is exhausted by the exhaust device, the first sheet-shaped member and the second sheet-shaped member sandwich the laminated materials in the housing space to press and bond the laminated materials that are transported to the pressing device while the laminated materials are fixed. a first fixing member having a pair of first columnar members (11, 11) that are disposed substantially in parallel to the direction the jig is to be transported to the pressing device and a first sheet-shaped member that is stretched between the pair of first columnar members by anchoring the ends to respective faces that extend in the longitudinal direction of the pair of first columnar members; a second fixing member having a pair of second columnar members (21, 21) that face respective first columnar members and a second sheet-shaped member that is stretched between the pair of second columnar members by anchoring the ends to respective faces that extend in the longitudinal direction of the pair of second columnar members; a sealing member that is disposed between the first sheet-shaped member and the second sheet-shaped member that are positioned by the pair of first columnar members and the pair of second columnar members, respectively, to face each other, the sealing member defining a housing space between the first sheet-shaped member and the second sheet-shaped member to house the laminated materials; wherein faces of the jig for fixing laminated materials in the direction the jig is to be transported are flat; wherein an exhaust passage is formed in at least one of the pair of the first columnar members to fluidly communicate with the housing space through an exhaust hole that penetrates the first sheet-shaped member and the exhaust passage is connected to an exhaust device; and wherein, when the laminated materials are located in the housing space and the space is exhausted by the exhaust device, the first sheet-shaped member and the second sheet-shaped member sandwich the laminated materials in the housing space to press and bond the laminated materials that are transported to the pressing device while the laminated materials are fixed.