To provide a mobile communication device and a communication control method that prevent safe driving assistance of another communication device from being obstructed, by performing control so that the transmission of mobile information by an on-vehicle device or a mobile communication terminal is carried out in a special control state when short-range radio communication is performed between the mobile communication terminal and the on-vehicle communication device.

An on-vehicle communication device comprises a control unit for performing control so that transmission of mobile information via a second communication unit or transmission of the mobile information by another communication device is carried out in a special control state when the first communication unit and the other communication device are performing short-range radio communication.