on october 26 to 27, 2019 ,the department of ie of the school of management invited 22 teachers of industrial engineering from 15 universities to hold a teaching seminar and exhibition of "digital lean production operation" for some freshmen majoring in ie. the teachers came from southwest university of science and technology, wuhan university of science and technology, nanjing university of science & technology and etc. the activity was adapted to the direction of professional reforming and development; enhanced the communication between schools; helped students learn more about the major; and promoted teachers' experimental and practical teaching ability.