UHF RFID tags have the advantages of being able to read multiple tags at a time, have a long identification distance, fast data transmission speed, high reliability and life span, and withstand harsh outdoor environments. It has been widely used in asset management, production line management, supply chain management, warehousing, retail, vehicle management, book/archive management, etc., for library/archive data storage, query, borrowing, return, anti-theft, inventory, warehouse management etc. This article mainly shares how uhf passive rfid tags realize intelligent book