To provide an entrance and exit management system capable of freely transferring an entrance and exit management database if necessary, thereby enhancing the convenience of a user or a manger.

The entrance and exit management system IS for performing the entrance and exit management of an employee is configured to detect the entrance or exit of an employee to a management object block, and to store person identification information related with an entrance and exit person or information corresponding to the person identification information in a tag ID management database 303 and an entrance and exit time management database 304, and to freely set the storage destination address of the entrance and exit management databases 303 and 304 in a network NW in a PC terminal 500 for an administrator, and to, when the PC terminal 500 for the administrator changes and sets the storage destination address in the network NW of the entrance and exit management databases 303 and 304, generate a storage destination file HF by rewriting the storage destination address before change with address information related with the changed storage destination address.

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