Cable path detector

The invention discloses a cable path detector. The cable path detector comprises a signal generator and a signal receiver, wherein the signal generator is connected with a circuit; the signal receiver is used for detecting cable signals and comprises a magnetic-field inductive probe, a signal amplifying circuit, a main control circuit and a display/alarm device; the output end of the magnetic-field inductive probe is connected with the input end of the signal amplifying circuit; the output end of the signal amplifying circuit is connected with the input end of the main control circuit; and the output end of the main control circuit is connected with the display/alarm device. The cable path detector disclosed by the invention has the advantages that the structure is simple, the use is convenient, workers can know the cable distributing condition in a wall body before construction, and the accidents caused by error processing is avoided.