The invention discloses a protection system. The protection system comprises RFID locks, RFID keys and a main control computer, wherein the RFID locks are used for providing unlocking information, the RFID keys are used for reading the unlocking information and opening or closing the RFID locks according to the unlocking information, the main control computer is used for displaying the working conditions of the RFID locks, and the working conditions comprise an unlocking condition and a locking condition. Due to the facts that the protection system receives the locations, set by a user, of the RFID locks and the working conditions sent by the RFID locks and the locations and the working conditions are displayed on a displayer, an administrator can visually learn about working situations of the RFID locks. Accordingly, the problem that in the prior art, working situations of RFID locks cannot be obtained is solved, and the effect of accurately monitoring the working situations of RFID locks is achieved.