born in Taixing, Jiangsu Province. He graduated from University of Science and Technology of China with master’s degree in June, 1992, and his doctor’s degree is received in July, 2006. At the present, he is the director of Purple Mountain Observatory, the deputy director of the National Astronomical Observatories (concurrently), chairman of the Key Laboratory of Dark Matter and Space Astronomy, director of the School of Astronomy and Space Science of the University of Science and Technology of China, chairman of research department of dark matter and space astronomy. He obtained the title of academician of Chinese Academy of Sciences in 2019.