A mobile communication terminal in accordance with the present invention includes a first wireless communication unit 102 corresponding to a first wireless communication system, an interface 107 detachably connecting an external apparatus 200, a determination unit 111 for determining whether or not the external apparatus 200 connected to the interface 107 corresponds to a second wireless communication system and is a second wireless communication unit 202 consuming less power than the first wireless communication unit 102, a battery voltage detection unit 104 for detecting battery voltage of a power supply unit 103 containing a battery and a control unit 111 for controlling the first wireless communication unit 102 to be in a disabled state when the first wireless communication unit 102 is communicating and the battery voltage detected by the battery voltage detection unit 104 is equal to or less than the predetermined value in the case where connection of the second wireless communication unit 202 is determined by the determination unit 111. Thus multimode communication depending on the battery voltage can be executed efficiently without causing unexpected circumstances to the user.