The invention discloses a signal receiver for a cable identification device. The signal receiver includes a flexible Rogowski coil, a control unit, a signal processing unit connected with the flexible Rogowski coil, a data acquisition unit, a triggering unit, a man-machine interaction unit and a power management module which supplies power to all units in the signal receiver, wherein the data acquisition unit, the triggering unit and the man-machine interaction unit are all connected with the control unit; the flexible Rogowski coil detects the pulse signals of a cable undergoing detection in a real-time manner and transmits the collected pulse signals to the signal processing unit; after filtering and amplifying the signals, the signal processing unit transmits the signals to the data acquisition unit; the data acquisition unit converts the input analog signals into digital signals and then transmits the digital signals to the control unit; after analyzing and processing the digital signals, the control unit automatically identifies the target cable and displays related information on the man-machine interaction unit. The signal receiver provided by the invention has the characteristics of stable and reliable identification performance, high anti-interference performance, wide applicability, small size and the like.