Abstract: In a key management box for centrally managing keys used to unlock the locks of a plurality of storage cabinets and comprising a key lock means for making impossible to take out the key, and electronic ID storage section performing personal authentication, and a controller for unlocking the key lock means for a key permitted for a personally authenticated user, the key is an electronic key with an IC tag, the IC tag stores the ID data of a user and data for specifying a storage cabinet permitted for the user to unlock out of a plurality of storage cabinets, and the key management box has a means for reading out the ID data of the IC tag, and a means for unlocking a lock means for a key having the ID data of the user when the electronic key ID storage section identifies a specific user. Consequently, the storage cabinets of the plurality of storage cabinets can be opened/close using one same key.

Abstract: In a key management box (30) for centrally managing keys used to unlock the locks of a plurality of storage cabinets and comprising a key lock means (41) for making impossible to take out the key, and electronic ID storage section (47) performing personal authentication, and a controller (44) for unlocking the key lock means (41) for a key permitted for a personally authenticated user, the key is an electronic key (1) with an IC tag, the IC tag stores the ID data of a user and data for specifying a storage cabinet permitted for the user to unlock out of a plurality of storage cabinets, and the key management box (30) has a means (42) for reading out the ID data of the IC tag (S13: Yes), and a means (S14) for unlocking a lock means (41) for a key having the ID data of the user when the electronic key ID storage section (47) identifies a specific user. Consequently, the storage cabinets of the plurality of storage cabinets can be opened/close using one same key.