PROBLEM TO BE SOLVED: To provide an access point device that allows a radio device to switch a radio communication system as connection destination without adding a new function to many radio devices already commonly used.SOLUTION: An access point device 2 according to the present invention comprises a wireless LAN communication unit 12 to be connected to a communication terminal 1 via wireless LAN communication, and a management unit 11 for managing identification information for the communication terminal 1. The wireless LAN communication unit 12 releases a connection with the communication terminal 1 upon receiving the identification information for the communication terminal 1 transmitted by another access point device when the communication terminal 1 has established a connection with the other access point device via short-range wireless communication.SELECTED DRAWING: Figure 1
