A cooling and heating air conditioner installed in an electric vehicle, the cooling and heating air conditioner comprising: a cooling and heating air conditioning unit including a cooling device for producing cooled air and a heating device for producing heated air, the cooling and heating air conditioning unit sending the cooled air produced by the cooling device or the heated air produced by the heating device to a vehicle interior; a cooling and heating air conditioning controller capable of setting the cooling and heating air conditioning unit to a cooling mode for sending the cooled air produced by the cooling device, a heating mode for sending the heated air produced by the heating device or an AUTO mode for automatically selecting the cooling mode or the heating mode at least based on a temperature of the vehicle interior so as to control the cooling and heating air conditioning unit according to the set mode; an air conditioning setting portion for setting the cooling and heating air conditioning controller to the cooling mode; a heater setting portion for setting the cooling and heating air conditioning controller to the heating mode; an AUTO setting portion for setting the cooling and heating air conditioning controller to the AUTO mode; an air conditioning indicator for indicating an activated state of the cooling device; a heater indicator for indicating an activated state of the heating device; and an AUTO indicator for indicating a set state set by the AUTO setting portion, the cooling device and the heating device being activated by electric energy from a driving battery of the electric vehicle, the cooling and heating air conditioning controller directing the AUTO indicator to indicate the set state of the AUTO mode and directing the air conditioning indicator or the heater indicator to indicate the activated state of the cooling device or the heating device when the AUTO mode is selected by the AUTO setting portion. a cooling and heating air conditioning unit including a cooling device for producing cooled air and a heating device for producing heated air, the cooling and heating air conditioning unit sending the cooled air produced by the cooling device or the heated air produced by the heating device to a vehicle interior; a cooling and heating air conditioning controller capable of setting the cooling and heating air conditioning unit to a cooling mode for sending the cooled air produced by the cooling device, a heating mode for sending the heated air produced by the heating device or an AUTO mode for automatically selecting the cooling mode or the heating mode at least based on a temperature of the vehicle interior so as to control the cooling and heating air conditioning unit according to the set mode; an air conditioning setting portion for setting the cooling and heating air conditioning controller to the cooling mode; a heater setting portion for setting the cooling and heating air conditioning controller to the heating mode; an AUTO setting portion for setting the cooling and heating air conditioning controller to the AUTO mode; an air conditioning indicator for indicating an activated state of the cooling device; a heater indicator for indicating an activated state of the heating device; and an AUTO indicator for indicating a set state set by the AUTO setting portion, the cooling device and the heating device being activated by electric energy from a driving battery of the electric vehicle, the cooling and heating air conditioning controller directing the AUTO indicator to indicate the set state of the AUTO mode and directing the air conditioning indicator or the heater indicator to indicate the activated state of the cooling device or the heating device when the AUTO mode is selected by the AUTO setting portion.