/kloc-0 studied in the Department of Mathematics of Northwest Normal University from September 1980 to July 1984. 1July, 1984 to1September, 1985, he taught in the Department of Mathematics of Northwest Normal University.

From September 1985 to July 1988, I studied for a master's degree in Wuhan University.

1September, 1988 to1July, 1989, he taught in the Mathematics Department of Northwest Normal University.

1September, 1989 to1July, 1992, studying for a doctorate in Lanzhou University.

1September 1992 to1September 1994 as a lecturer in the Department of Mathematics of Northwest Normal University.

1994 Up to now, Professor of Mathematics Department of Northwest Normal University.

In September 2000, he served as Dean of the School of Mathematics and Information Science of Northwest Normal University.

From June 5438 to October 2004, he served as assistant to the president of Northwest Normal University.

In 2007, he served as vice president of Northwest Normal University.

20 12 12 president of northwest normal university.