A method for manufacturing a tire, comprising sequentially bonding a large number of strip materials on a molding surface located on an outer circumferential side of a rigid core having an outer circumferential surface with a profile in which a circumferential length changes at a position in a width direction in a manner of extending the strip materials in a width direction of the rigid core at an inclined direction with respect to a circumferential direction of the rigid core, and arranging and bonding the strip materials in the circumferential direction, so that a belt layer is formed by bonding together the strip materials that are adjacently bonded in the circumferential direction; forming a green tire having the belt layer; and vulcanizing the green tire, wherein, the rigid core is relatively moved along the profile that is preliminarily known so that the molding surface is brought close to the strip material to be bonded to the molding surface, and the strip materials to be bonded are extended in the longitudinal direction and bonded to the molding surface while relatively turning the rigid core in a direction in which a circumferential angle with respect to the longitudinal direction of the strip materials to be bonded changes, so that variation in bonding margin, due to the position in the width of the rigid core, between the strip materials to be bonded adjacent to each other in the circumferential direction is reduced, wherein after bonding the central portion in the longitudinal direction of the strip material to be bonded to the molding surface at a central portion of the rigid core in the width direction, the strip material to be bonded is bonded to the molding surface from the central portion in the longitudinal direction toward one end in the longitudinal direction, then the strip material to be bonded is bonded to the molding surface from the central portion in the longitudinal direction toward the other end in the longitudinal direction. sequentially bonding a large number of strip materials on a molding surface located on an outer circumferential side of a rigid core having an outer circumferential surface with a profile in which a circumferential length changes at a position in a width direction in a manner of extending the strip materials in a width direction of the rigid core at an inclined direction with respect to a circumferential direction of the rigid core, and arranging and bonding the strip materials in the circumferential direction, so that a belt layer is formed by bonding together the strip materials that are adjacently bonded in the circumferential direction; forming a green tire having the belt layer; and vulcanizing the green tire, wherein, the rigid core is relatively moved along the profile that is preliminarily known so that the molding surface is brought close to the strip material to be bonded to the molding surface, and the strip materials to be bonded are extended in the longitudinal direction and bonded to the molding surface while relatively turning the rigid core in a direction in which a circumferential angle with respect to the longitudinal direction of the strip materials to be bonded changes, so that variation in bonding margin, due to the position in the width of the rigid core, between the strip materials to be bonded adjacent to each other in the circumferential direction is reduced, wherein after bonding the central portion in the longitudinal direction of the strip material to be bonded to the molding surface at a central portion of the rigid core in the width direction, the strip material to be bonded is bonded to the molding surface from the central portion in the longitudinal direction toward one end in the longitudinal direction, then the strip material to be bonded is bonded to the molding surface from the central portion in the longitudinal direction toward the other end in the longitudinal direction.