Combining artificial intelligence with education is one of the hottest topics of artificial intelligence research. It is important to obtain learning state information in intelligent education. The changes of sight line can reflect mental and state changes directly or indirectly. Thus, gaze tracking plays an important role in the field of intelligent education. Firstly, the development of intelligent education was introduced. Then, the development, current research works and research status of gaze tracking technology were summed up and analyzed. And the related applications and research work of gaze tracking technology in education field of the past three years were summarized. Finally, the summary and prospect of the development trend of gaze tracking in education field were given.