Steel wire rope flaw detection device

The invention provides a steel wire rope flaw detection device which can detect the occurrence of wire breakage outside or in a deep part of a pointing area based on a magnetic signal of tiny leakage even if the steel wire rope flaw detection device is a magnetic induction element with directivity. A wire rope flaw detection device for detecting damage to a wire rope, the wire rope flaw detection device being provided with: a magnetizer for forming a magnetic path in a predetermined section of the wire rope; a magnetic sensor magnetically insulated from the magnetizer and capable of detecting a leakage magnetic flux from a damaged portion of the wire rope; a ferromagnetic body for changing the direction of a leakage magnetic flux generated by damage to the wire of the wire rope placed in the magnetic circuit, and concentrating the leakage magnetic flux on the magnetic sensor; a signal collection unit that collects a magnetic signal of the magnetic sensor that has detected the leakage magnetic flux; and a sign