The Department of Physics, as always, strives to create conditions, strive for more opportunities for its undergraduates and carry out various forms of foreign exchange activities. The undergraduate exchange program between the Department of Physics and Nottingham University has been going on for many years. Since 2002, undergraduates have been sent to Nottingham University for graduation thesis. Their diligence, hard work and pragmatic spirit left a good impression on the British side, and the students also benefited a lot from this practice. At the same time, we have established undergraduate exchange programs with Chinese University of Hong Kong, Hong Kong University of Science and Technology, Hong Kong Polytechnic University and Tsinghua University, Taiwan Province Province. Since 2003, an average of 1 1 students have participated in exchange activities every year, accounting for about 10% of each student.