For each radio base stations (2A to 2C), a communication control device (1) collects information on the number of unused EPS bearers passing through the radio base station, and transmits the numbers to the radio base stations (2A to 2C). Further, based on the received number of unused EPS bearers, the radio base stations (2A to 2C) perform control to select, as a connection destination radio base station of a radio terminal (3), the radio base station other than the radio base station having unused EPS bearers passing through is not larger than a predetermined number.