The invention relates to an optical fiber ribbon, which comprises a plurality of optical fibers and coating layers, the plurality of optical fibers form the coating layers outside the optical fibers through a mold cavity of a mold injected with resin, and the optical fiber ribbon further comprises connecting parts; the optical fibers are distributed at intervals in the linear direction, each optical fiber is coated with a coating layer with uniform thickness, the coating layers of the adjacent optical fibers are connected through the connecting parts, the two sides, in the length direction, ofthe optical fiber ribbon are of a corrugated structure, the thickness of the connecting parts is 1 / 3-1 / 2 of the diameter of the coating layers, and the connecting parts and the coating layers are made of resin with a Young modulus of 1Mpa-100Mpa, the optical fiber ribbon can be bent in the width direction through elastic deformation of the connecting parts. The connecting parts are soft, so thatthe optical fiber ribbon can be bent in the width direction, attenuation loss is avoided, and the optical fiber ribbon can be suitable for narrow gaps and small holes at the same time.