The purpose of the application design of intelligent dinner plate is to solve the problems of long queuing and settlement time in school restaurants and manual bookkeeping errors. Intelligent dinner plate is a kind of tableware that can be automatically identified by RFID smart board electronic tag embedded in the bottom of the dinner plate. It is a key component of the intelligent catering fast settlement system. Combined with the card reader, the intelligent management of catering cashier is realized. Suitable for university restaurants, corporate restaurants, Chinese fast food chain stores, buffet hot pot restaurants and other restaurants. The birth of intelligent plates is to solve the problems of slow ordering, error-prone, high cost and poor experience in traditional restaurants. It needs to be used in conjunction with the intelligent disk cash register. After the tray enters the cashier (RF antenna detection area), read and write the RFIDRF chip at the bottom of the tray. Through this communication technology, you can read and write RFID radio frequency chips located at the bottom of tableware, and realize fast payment through communication and management. Therefore, the purpose of the application design of intelligent dinner plate is to solve the problems such as long waiting time for queuing and settlement in school restaurants, and mistakes in manual bookkeeping.