The utility model belongs to the technical field of commodity anti-theft, and discloses a commodity anti-theft device, including a first half shell, a PCB
assembly, a
wire rope assembly, a second half shell and a lock core
assembly, wherein the PCB assembly is arranged in a shell composed of the first half shell and the second half shell, the
wire rope assembly includes a
copper buckle, two leads and a
wire rope, the fixed end of the wire
rope is arranged in the shell, the fixed end is provided with a
copper buckle and two leads, the two leads are electrically connected and conducted with the PCB assembly to form an
electronic circuit, the free end of the wire
rope passes through the lock core assembly, the part of the wire
rope outside the shell forms a ring shape and is bound to the protected commodity, when the wire rope is
cut, the circuit is disconnected and the PCB assembly alarm is triggered, and the lock core assembly is provided with a loose rope dial button, and the loose rope dial button can be turned to make the wire rope withdraw backwards to loosen the rope. The device is small in size, reduces the space occupied by the shelf, and can meet the anti-theft needs of small packaged commodities.