On October 28, 2016, Prof. Xu Ze-shui, a professor of Sichuan University Business School, a distinguished professor of Changjiang Scholar of the Ministry of Education and a recipient of the National Science Fund for Distinguished Young Scholars, was invited by the Department of Management Science and Logistics to visit and make academic exchanges. He brought a report to our teachers and students entitled "Hesitant fuzzy set theory". Professor Zhang Qiang, Director of the Department of Management Science and Logistics, hosted the meeting. Prof. Ju Yanbing, Prof. Hou Fujun and Dr. Guan Lei attended the report.