Animal necklace anti-disassembly device and anti-disassembly method

The invention provides an animal necklace anti-disassembly device and method, and the device comprises a plurality of ear tags which each comprise a first controller and are used for controlling a wireless transmitter to continuously output a pre-stored ear tag identity code; each of the plurality of necklaces comprises a second controller and is used for controlling the wireless receiver to continuously receive the ear tag identity code, outputting a detection result representing successful receiving when the ear tag identity code is received and matched with the target identity code, and outputting a necklace dismounting result representing that the necklaces are dismounted when the ear tag identity code is not received; when the detection result is received, the relative distance between the ear tag and the necklace is obtained through wireless signal quality processing of the ear tag identity code, and a corresponding necklace dismounting result is obtained through processing according to the relative dis