Anti-counterfeiting bracelet is a kind of smart wearable device, which has many functions such as identity authentication, health monitoring, emergency help and so on. It can be authenticated by scanning a QR code or entering a password, and can enter various places or use various services. At the same time, it can also monitor the user's heart rate, blood pressure, blood oxygen, body temperature and other health conditions, and display data and provide suggestions through the mobile APP.