Abstract: An auxiliary air conditioning apparatus may include a blower unit, wherein a blower may be provided therein to forcibly blow intake air, a temperature control unit fluid-connected to the blower unit to receive air blown from the blower unit, wherein the temperature control unit includes an evaporator and a heater therein and may be connected to an air duct to exhaust air that may be cooled by the evaporator or heated by the heater, an auxiliary temperature control unit fluid-connected to the blower unit to receive air blown from the blower unit and fluid-connected to the air duct, wherein the auxiliary temperature control unit includes a heat exchanger core provided therein, the heat exchanger core having a thermoelectric device, an auxiliary power supply supplying electrical power to the blower and the heat exchanger core, and an auxiliary cooling/heating control unit controlling operation of the blower and the heat exchanger unit.