He is also a professor at Nankai University, chairman of China Society of Engineering Probability and Statistics, director of Applied Probability and Statistics Committee of China Institute of Technology, consultant of China Cooperative Association of Management Applied Mathematics, director of China Society of Probability and Statistics, vice chairman of Hebei Province Mathematics, member of discipline group of Hebei Provincial Natural Science Fund Evaluation Committee, director of Tianjin Mathematics Society, deputy editor-in-chief of Mathematical Statistics and Applied Probability, editor-in-chief of Economic Mathematics, commentator of German Mathematical Abstracts and honorary consultant of Cambridge International Biography Center.

1982- 1983, as a visiting scholar, studying and researching at new york University. 1983 and 1985 were invited to give lectures and study in university of regina and Manitoba University, and 1994 was invited to study in Shantou University for half a year.