A communication system, which makes possible to carry out wide area communication between terminals, includes a mobile communication terminal which has a mobile communication means to carryout communication via a mobile communication network and a near field wireless communication means to carry out communication via a near field wireless communication network, and a near field wireless communication terminal which has a near field communication means to carry out communication via the near field communication network. Moreover, the mobile communication terminal comprises a communication repeating means to connect, as a repeater, other mobile communication terminal which is connected to the mobile communication terminal via the mobile communication network, and the near field wireless communication terminal which is connected to the mobile communication terminal via the near field communication network, by use of a communication path between the mobile communication terminal and the other mobile communication terminal.