A hollow fiber membrane module (4A, 4B) including at least one hollow fiber membrane sheet-like object (1A, 1B) in which a plurality of hollow fiber membranes is aligned in parallel with each other and fixed to each other while both end faces of each of the hollow fiber membranes in a longitudinal direction are open, wherein at least one belt-like binding portion (3a, 3b) made of an elastic body having an elongation percentage stipulated by JIS K6251 of 100% or more and extending in a direction perpendicular to the longitudinal direction is formed at each of both end portions of the hollow fiber membrane sheet-like object (1A, 1B), and the plurality of hollow fiber membranes is fixed to each other, and a pair of elongated housings (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) in which openings are formed along a longitudinal direction, both end portions of the hollow fiber membrane sheet-like object (1A, 1B) being inserted into the openings and fixed, wherein the hollow fiber membrane sheet-like object (1A, 1B) is fluid-tightly fixed by resin inside the housings (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) while only a binding portion (3a, 3b) provided closest to an end portion side at each end portion in the binding portions (3a, 3b) formed at the both end portions of the hollow fiber membrane sheet-like object (1A, 1B) is inserted into each housing (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) from the opening characterized in that at least a pair of protruding stripe portions (20a, 20b, 20c) opposing each other to interpose the binding portion (3a, 3b) inserted into the housing (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) therebetween is provided to extend along a longitudinal direction of the housing (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) on an inner surface of each of the housings (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b). wherein at least one belt-like binding portion (3a, 3b) made of an elastic body having an elongation percentage stipulated by JIS K6251 of 100% or more and extending in a direction perpendicular to the longitudinal direction is formed at each of both end portions of the hollow fiber membrane sheet-like object (1A, 1B), and the plurality of hollow fiber membranes is fixed to each other, and a pair of elongated housings (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) in which openings are formed along a longitudinal direction, both end portions of the hollow fiber membrane sheet-like object (1A, 1B) being inserted into the openings and fixed, wherein the hollow fiber membrane sheet-like object (1A, 1B) is fluid-tightly fixed by resin inside the housings (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) while only a binding portion (3a, 3b) provided closest to an end portion side at each end portion in the binding portions (3a, 3b) formed at the both end portions of the hollow fiber membrane sheet-like object (1A, 1B) is inserted into each housing (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) from the opening characterized in that at least a pair of protruding stripe portions (20a, 20b, 20c) opposing each other to interpose the binding portion (3a, 3b) inserted into the housing (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) therebetween is provided to extend along a longitudinal direction of the housing (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) on an inner surface of each of the housings (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b). characterized in that at least a pair of protruding stripe portions (20a, 20b, 20c) opposing each other to interpose the binding portion (3a, 3b) inserted into the housing (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) therebetween is provided to extend along a longitudinal direction of the housing (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b) on an inner surface of each of the housings (5a, 5b, 25a, 25b, 35a, 35b, 45a, 45b).