The invention discloses an intelligent information management door lock. The intelligent information management door lock comprises a lock cylinder and a key. A key hole is formed in the lock cylinder. A control unit, a key code reading module and a storage module are arranged in the lock cylinder. An identity chip is arranged in the key. A clock module is further arranged in the lock cylinder. When the key is inserted into the key hole, the control unit stores the key code used this time and the time for using the key this time in the storage module as a use record. According to the intelligent information management door lock, the overall structure is obtained in a mechanical lock mode, the lock cylinder can automatically record the key code and the using time of the key, a manager can better learn the use condition of the door lock through the record, in this way, the anti-theft effect is better, and the safety is higher during use of the intelligent information management door lock; a machine portion is omitted, the lock cylinder can directly replace a traditional mechanical lock cylinder to be used, and therefore an existing door lock can be upgraded conveniently; the work reliability of the intelligent information management door lock can be on a par with a traditional mechanical lock.