Thanks to the advantage by adopting RFID on the automation of borrowing and managing library collection, libraries around the world are widely employing and expanding RFID. Taiwan has never absent from technique facility improvement, libraries in Taiwan get a great deal of benefits for utilizing RFID. This article first introduces the status of libraries in foreign countries that had employed RFID technology, followed by describing the application standard of RFID using the Taipei Public Library as an example; ending with a proposal of development prospect of RFID to fulfilling the practical requests in the future.