The invention relates to the technical field of management systems, and in particular to a lock management system. The lock management system comprises an information tag, an MCU (micro controller unit) and a bilateral transmitting information software. The information tag for storing passwords and the MCU are arranged in an electronic lock, the bilateral transmitting information software is installed in a mobile phone, accordingly, the electronic lock is served as a Tag, and the mobile phone is served as a Reader. An NFC (near field communication) unlocking and management system has the advantages that 1, when the system is not use at ordinary times, the power consumption of the electronic lock is zero, so that the system is electricity-saving and environment-friendly; 2, the electronic lock is served as a Tag, the production cost of the lock is relatively low, and accordingly, the unit lock prices is reduced; 3, special Reader equipment is not needed, so that the system is economical; 4, the system can be applied to families and large enterprises, and the locking can be managed and recorded; 5, users respectively use the mobile phones so as to replace keys; and 6, even if relatives and friends visit, master control password or unlocking password can be transmitted from a remote end, and accordingly, a key transfer function is facilitated.