1979- 1983 studied in the department of mathematics of Hebei normal university and obtained a bachelor's degree; 1988- 199 1 studied in the Department of Mathematics of Hebei Normal University and obtained a master's degree from Professor Wu Zhende; 199 1- 1998 teaches at Hebei university of science and technology; 1998-200 1 studied at the institute of systems science, institute of mathematics and systems science, China academy of sciences, and obtained a doctorate from Li Banghe; 200 1 working in north china university of technology so far; He went to Germany for an academic visit in 2004.