A driving recorder of the present invention is provided with: a data collecting portion that collects driving condition data of a vehicle; a storage portion that stores the driving condition data in a non-volatile manner; a communications portion that performs mutual communications with a mobile telephone terminal, using a cable or wirelessly; and a control portion that comprehensively controls these portions each provided as a functional part, wherein the control portion controls the communications portion to thereby permit the communications portion to transmit and receive the driving condition data to and from the mobile telephone terminal.