RFID technology has a wide range of applications in the food industry, especially in terms of freshness management and food safety. Firstly, RFID technology can be used for freshness management of fruits, vegetables, and fresh food. By monitoring and recording environmental factors such as temperature and humidity in real-time, it ensures the freshness of food during storage and transportation. Secondly, RFID technology can also be used for food safety traceability, from the cultivation or breeding process of food to the circulation process, to achieve forward and backward tracking, ensuring food safety in all aspects. For example, at the Shanghai World Expo, the organizers used RFID technology to trace vegetables, seafood and other food products, ensuring the safety and reliability of the supply channels.