A gaze tracking device and method, and a recording medium for performing the same are disclosed. The gaze tracking device, which is a device for tracking the gaze of a person present in an area in which the gaze tracking device is located, sets a photographing unit of the gaze tracking device to a wide-angle mode, photographs an area within a wide-angle view of the photographing unit, detects the person from a photographed image, and converts the wide-angle mode of the photographing unit into a narrow-angle mode so as to track the gaze of the person when the person is detected from the photographed image, wherein when tracking the gaze of the person by converting the wide-angle mode of the photographing unit into the narrow-angle mode, if the person is out of the shooting range of the narrow-angle mode while tracking the gaze of the person in the narrow-angle mode of the photographing unit, the photographing unit is converted from the narrow-angle mode into the wide-angle mode so as to track the gaze of the person by re-searching for the person.