An intermittently-coupled type optical fiber ribbon comprising a plurality of ribbon type paired optical fibers (12A, 12B, 12C, 12D, 12E, 12F), wherein each of the plurality of ribbon type paired optical fibers is integrally formed by bringing two optical fibers (11A, 11B; 11C, 11D; 11E, 11F; 11G, 11H; 111, 11J; 11K, 11L) into contact with each other, wherein the plurality of ribbon type paired optical fibers are arranged in parallel, wherein intermittent couplings formed by a coupling part in which adjacent ribbon type paired optical fibers are connected to each other and a non-coupling part in which ribbon type paired optical fibers are not connected are provided in a longitudinal direction between adjacent ribbon type paired optical fibers of the intermittently-coupled type optical fiber ribbon, wherein: an outer diameter dimension of the optical fiber is 0.22mm or less; the number of optical fibers of the intermittently-coupled type optical fiber ribbon is N; for optical fibers, of the plurality of ribbon type paired optical fibers, sequentially numbered from M=1 to M=N in a lateral direction of the intermittently-coupled type optical fiber ribbon, where N is a multiple of four, characterized in that, for even values of M, a center distance between the M-th optical fiber and the M+1-th optical fiber at a position in the longitudinal direction with the coupling part interposed therebetween is equal to or greater than 0.25 mm and less than or equal to 0.31 mm and a center distance between the M-1-th optical fiber and the M-th optical fiber, which are included in one of the plurality of ribbon type paired optical fibers, is 0.20 ± 0.03mm. wherein each of the plurality of ribbon type paired optical fibers is integrally formed by bringing two optical fibers (11A, 11B; 11C, 11D; 11E, 11F; 11G, 11H; 111, 11J; 11K, 11L) into contact with each other, wherein the plurality of ribbon type paired optical fibers are arranged in parallel, wherein intermittent couplings formed by a coupling part in which adjacent ribbon type paired optical fibers are connected to each other and a non-coupling part in which ribbon type paired optical fibers are not connected are provided in a longitudinal direction between adjacent ribbon type paired optical fibers of the intermittently-coupled type optical fiber ribbon, wherein: an outer diameter dimension of the optical fiber is 0.22mm or less; the number of optical fibers of the intermittently-coupled type optical fiber ribbon is N; for optical fibers, of the plurality of ribbon type paired optical fibers, sequentially numbered from M=1 to M=N in a lateral direction of the intermittently-coupled type optical fiber ribbon, where N is a multiple of four, characterized in that, for even values of M, a center distance between the M-th optical fiber and the M+1-th optical fiber at a position in the longitudinal direction with the coupling part interposed therebetween is equal to or greater than 0.25 mm and less than or equal to 0.31 mm and a center distance between the M-1-th optical fiber and the M-th optical fiber, which are included in one of the plurality of ribbon type paired optical fibers, is 0.20 ± 0.03mm. an outer diameter dimension of the optical fiber is 0.22mm or less; the number of optical fibers of the intermittently-coupled type optical fiber ribbon is N; for optical fibers, of the plurality of ribbon type paired optical fibers, sequentially numbered from M=1 to M=N in a lateral direction of the intermittently-coupled type optical fiber ribbon, where N is a multiple of four, characterized in that, for even values of M, a center distance between the M-th optical fiber and the M+1-th optical fiber at a position in the longitudinal direction with the coupling part interposed therebetween is equal to or greater than 0.25 mm and less than or equal to 0.31 mm and a center distance between the M-1-th optical fiber and the M-th optical fiber, which are included in one of the plurality of ribbon type paired optical fibers, is 0.20 ± 0.03mm.