The invention provides a radio communication device for carrying out a time division communication, thereby communicating with a base station for transmitting control data, wherein when an intermittent receiving operation is to be performed in order to capture the control data transmitted from the base station during a standby, the receiving operation of the radio portion is started to periodically receive the control data of the base station, the receiving operation is stopped if the control data cannot be received for a predetermined receipt period, the receiving operation is then restarted repetitively after a predetermined halt period passes, and a receiving period in the intermittent receiving operation is switched to be short if the control data cannot be captured for a predetermined period. Consequently, the consumed current of a retrieving operation can be reduced in an environment in which a signal sent from the base station cannot be received, and the control data can be received early when a receivable state is brought, and thus, a return to a standby state can be carried out immediately and quickly.