SYSTEM AND METHOD FOR CONTROLLING INTERNAL TEMPERATURE OF VEHICLE WHEN ENGINE IS TURNED OFF

A system for controlling an internal temperature of a vehicle when an engine is turned off includes a temperature sensor configured to measure an internal temperature (Ti) of a vehicle; a first blower configured to discharge cooled air when an electric power is supplied to the first blower; a battery; and a control unit electrically connected to the temperature sensor and the first blower and configured to receive the internal temperature (Ti) of the vehicle from the temperature sensor, and to operate the first blower, in which the control unit electrically connected to the battery is configured to control an electric power of the battery to be applied to the first blower when the internal temperature (Ti) of the vehicle is equal to or greater than a predetermined reference temperature (Tr) in a state where an engine of the vehicle is turned off.