The present invention is coupled to each of the components constituting the tire to a it relates to inserts tire and a method of manufacturing the fabricated body Thai finished, positioned inside an outer peripheral surface integral with the core and mandrel in the shape of the tire so as to form a circular forms, based on the symmetrical line (500) includes an outer shell made of engineering plastic resin material having a tread formed to protrude to the side in contact with the road surface, core 10 is positioned at the center of the tire, so as to form a circle of the tire so to absorb the impact transmitted from the road surface and, but formed to protrude along the outer peripheral surface, the first left discs (11a) and the first right side disc (11b) of symmetry so as to form the coupling part 111 is coupled together to be the first relative to the disk 11, a disk 11 doedoe coupled integrally with the left and right sides, is formed such that the outer surface is closed, the line of symmetry (500) Double-sided portion and the second left discs (12a) and a second disk made of a second right disc (12b) (12), the first left discs (11a) and the first right side disc (11b) are symmetrically formed in the second providing a left discs (12a) and the coupling grooves 13 on one surface of the second right disc (12b) and the first left discs (11a), the first right side disc (11b), the second left discs (12a), a second face joining means 14 formed of a metallic material such that the mutual coupling to the coupling grooves 13 to the right side of the disc (12b) and the first left discs (11a), the first right side disc (11b), the second left disk (12a), a second right side disc (12b) inside being in formed is separated from the coupling grooves 13 of the first left side disc (11a), the first right side disc (11b), the second left discs (12a), the 2, the insert comprising a partition wall structure 15 formed as a grid to be connected with the right disc (12b) tire and relates to a production method thereof.