1). Unique identity for every livestock and pet. 2). Import and export control. 3). A lost pet can be easily traced back to its owner. 4). Veterinarians can keep the animal's health record. 5). Easily implanted and has no impact on the animal. 6). Suitable for use in extreme conditions. 7). Coupled with software, the RFID tag is a must in the management of animals, either livestock or household pets.