The invention relates to the field of repairing and particularly relates to a cable repairing and fixing device which comprises an upper connecting piece, a lower connecting piece, an upper pressing piece, a lower pressing piece and two hydraulic telescopic rods. One end of each of the hydraulic telescopic rods is connected to one side of the upper connecting piece by a fixed piece, and the otherend of each of the hydraulic telescopic rods is connected to one side of the lower connecting piece by a fixed piece. The two hydraulic telescopic rods are arranged at left and right sides of the upper connecting piece and the lower connecting piece. The top end of the upper pressing piece is connected to a bottom end of the upper connecting piece, and the bottom end of the upper pressing piece isprovided with a semicircular groove. The bottom end of the lower pressing piece is connected to the top end of the lower connecting piece, and the top end of the lower pressing piece is provided witha semicircular groove. The structure of the cable repairing and fixing device is simple, the fixing of cables of all specifications can be easily realized, bent cables of different specifications canbe repaired, time and labor are saved in a repair process, and the good performance of the cables is ensured. The device has the advantages of simple operation, high practicability and easy popularization.