The present invention relates to an air conditioner. The air conditioner includes a discharge driving unit for discharging an air-conditioned air, a sensor module for detecting first and second radiation signals for heat sources while the sensor module rotates and performs scan in first and second rotation directions and for outputting a human body detection signal based on the detected first and second radiation signals, and a control unit for calculating position information of human bodies based on the human body detection signal and controlling the discharge driving unit based on the calculated position information.