The utility model discloses a contact line for an electrified railway contact network, and solves the problems of high abrasion measurement difficulty and high cost of the contact line in the prior art in the use process. The contact line comprises a contact line main body, an optical fiber A, an optical fiber B, an optical fiber C, an optical fiber A ', an optical fiber B' and an optical fiber C'are embedded in the lower arc-shaped surface of the contact line main body; the optical fibers A, B and C are sequentially distributed on the same side of the lower arc-shaped surface of the contactline main body from top to bottom; the optical fiber C ', the optical fiber B' and the optical fiber A 'are sequentially distributed on the other side of the lower arc-shaped surface of the contact line main body from top to bottom; the optical fiber A and the optical fiber C'are located on the same horizontal plane, the optical fiber B and the optical fiber B 'are located on the same horizontal plane, the optical fiber C and the optical fiber A' are located on the same horizontal plane, and an optical fiber transmitter and an optical fiber receiver are arranged at two ends of the contact linebody respectively and connected with a PC. According to the utility model, the abrasion measurement difficulty and the abrasion measurement cost of the contact line in the use process can be effectively reduced.