A tire manufacturing system, comprising: a green tire formation zone for forming a green tire; a vulcanization zone for vulcanizing the green tire; an inspection and discharge zone for inspecting and discharging the vulcanized tire; and a material storage zone for storing materials for green tire formation, wherein the green tire formation zone has a track and a plurality of work stations arranged along the track, where a green tire is formed by assembling a tire constituent member to an outer surface of a rigid core moving on the track at each of the work stations, the track is composed of a horizontally-long, square-cornered U-shaped bending track including a pair of lateral track parts (3A, 3C) extended in a lateral direction and parallel to each other and a perpendicular track part connecting end portions of the lateral track parts (3A, 3C) at one lateral side, each of the work stations includes a member assembly device that forms the ti re constituent member by attaching a member material set for each of the tire constituent members to a surface of the rigid core, under an attachment condition determined according to size of the rigid core, the member assembly devices being arranged at an outer peripheral side of the square-cornered U-shaped bending track and along the lateral track parts (3A, 3C), the material storage zone is arranged adjacent to one lateral side of the square-cornered U-shaped bending track, and stores member materials to be used by the member assembly devices or intermediate materials for formation of the member materials so as to be capable of being supplied to the member assembly devices, the vulcanization zone is arranged adjacent to the other lateral side of the square-cornered U-shaped bending track, and the inspection and discharge zone is arranged adjacent to the other lateral side of the vulcanization zone. a green tire formation zone for forming a green tire; a vulcanization zone for vulcanizing the green tire; an inspection and discharge zone for inspecting and discharging the vulcanized tire; and a material storage zone for storing materials for green tire formation, wherein the green tire formation zone has a track and a plurality of work stations arranged along the track, where a green tire is formed by assembling a tire constituent member to an outer surface of a rigid core moving on the track at each of the work stations, the track is composed of a horizontally-long, square-cornered U-shaped bending track including a pair of lateral track parts (3A, 3C) extended in a lateral direction and parallel to each other and a perpendicular track part connecting end portions of the lateral track parts (3A, 3C) at one lateral side, each of the work stations includes a member assembly device that forms the ti re constituent member by attaching a member material set for each of the tire constituent members to a surface of the rigid core, under an attachment condition determined according to size of the rigid core, the member assembly devices being arranged at an outer peripheral side of the square-cornered U-shaped bending track and along the lateral track parts (3A, 3C), the material storage zone is arranged adjacent to one lateral side of the square-cornered U-shaped bending track, and stores member materials to be used by the member assembly devices or intermediate materials for formation of the member materials so as to be capable of being supplied to the member assembly devices, the vulcanization zone is arranged adjacent to the other lateral side of the square-cornered U-shaped bending track, and the inspection and discharge zone is arranged adjacent to the other lateral side of the vulcanization zone.