May, 2008 -- : Professor, School of Physics, Peking University

April, 2004 - April, 2008: Associate Professor, National Astronomical Observatories, CAS

April, 2002 - March, 2004: Post doctor, Dept. of Geophysics, Peking University, China

April, 2001 - March, 2002：Non-tenure researcher, Institute of Information Sciences and Electronics, University of Tsukuba, Japan

January, 2001: Dept. of Geophysics, Peking University, Ph.D in Space Physics