A control unit for an electrically driven vehicle adapted to be charged by an exterior power supply being inserted into a charging inlet configured to be closed by an opening and closing device, the control unit comprising: a vehicle state determination means adapted to determine whether or not the electrically driven vehicle is in a charging prohibited state; a warning control means adapted to a warning device (31, 32) for issuing a warning to activate the warning device (31, 32) when the electrically driven vehicle satisfies a warning condition, and a connected state determination module adapted to determine on a connected state of a charging connection device that is connected with the exterior power supply, a canceled state determination module adapted to determine whether or not the electrically driven vehicle is in a cancelled state in which the charging prohibited state is canceled; and a warning stopping module adapted to control the warning device (31, 32) to stop issuing the warning when the electrically driven vehicle satisfies a warning stopping condition, wherein the warning condition is a condition in which the vehicle state determination means determines that the electrically driven vehicle is in the charging prohibited state and the opening and closing device is switched to an opened state, wherein the warning stopping condition is a condition that the canceled state determination module determines that the charging prohibited state is canceled, and the control unit being characterized in that the charging prohibited state includes a state in which the electrically driven vehicle is in an ignition-on state or a ready-on state, and that the canceled state includes a state in which the connected state determination module determines that the charging connection device is not connected with the exterior power supply. a vehicle state determination means adapted to determine whether or not the electrically driven vehicle is in a charging prohibited state; a warning control means adapted to a warning device (31, 32) for issuing a warning to activate the warning device (31, 32) when the electrically driven vehicle satisfies a warning condition, and a connected state determination module adapted to determine on a connected state of a charging connection device that is connected with the exterior power supply, a canceled state determination module adapted to determine whether or not the electrically driven vehicle is in a cancelled state in which the charging prohibited state is canceled; and a warning stopping module adapted to control the warning device (31, 32) to stop issuing the warning when the electrically driven vehicle satisfies a warning stopping condition, wherein the warning condition is a condition in which the vehicle state determination means determines that the electrically driven vehicle is in the charging prohibited state and the opening and closing device is switched to an opened state, wherein the warning stopping condition is a condition that the canceled state determination module determines that the charging prohibited state is canceled, and the control unit being characterized in that the charging prohibited state includes a state in which the electrically driven vehicle is in an ignition-on state or a ready-on state, and that the canceled state includes a state in which the connected state determination module determines that the charging connection device is not connected with the exterior power supply.