PURPOSE: An eye tracking system and a method thereof are provided to accurately recognize an interest target of a user and to supply necessary information by supplying interest information. CONSTITUTION: A first photographing unit(110) photographs a front side. A second photographing unit(120) photographs a pupil position of a user. A mapping unit(130) maps obtained images. An extracting unit(150) extracts a pupil area from the image transmitted from the second photographing unit. A recognizing unit(160) recognizes an interest area corresponding to a pupil location from the image photographed from the first photographing unit. A searching unit(170) searches for information corresponding to the interest area. [Reference numerals] (110) First photographing unit; (120) Second photographing unit; (130) Mapping unit; (150) Extracting unit; (160) Recognizing unit; (170) Searching unit; (180) Output unit