1960- 1970, teaching in the philosophy department of China Renmin university. From 197 1 to 1979, he was transferred to the philosophy teaching and research section of Tsinghua University. 1980 transferred to the School of Philosophy of Renmin University of China. The professor is at 1993. 1995 as a doctoral supervisor. 1998 China Renmin university was rated as the academic leader of logic discipline. He used to be the director of the logic teaching and research section and a member of the degree and academic Committee. Visiting Professor of Soochow University in Taiwan Province Province. Vice President of China Mozi Society and former Vice President of Chinese Logic Society. I mainly study logic, China's philosophy, a hundred schools of thought contend, Chinese studies and China traditional culture.

He is the author of China's Grand Ceremony, Philosophical Classics, Hundred Branches, Lectures on Logical Philosophy, History of China's Logic, China's Logic, China's Logic Research, The Logic Wisdom of Hundred Schools, The Thinking Art of Ancient Philosophers in China, Sophistication and Appreciation of Logical Masterpieces, General Theory of Mohist School and Mohist Wisdom. Translation of Modern Logic, Logic: the Foundation of Knowledge, Rational Thought in the East, and Fallacy in the Ming Dynasty. More than 200 papers.