The present invention relates to a communication line. The communication line according to an embodiment of the present invention includes at least one core portion including a dielectric core extending in a longitudinal direction and a rib member formed on an outer surface of the dielectric core, and a shielding portion including a shielding having a hollow tubular shape and a rail member formed to extend on an inner surface of the shielding and extending along the shielding in the longitudinal direction, wherein the at least one core portion is inserted into the shielding portion.