The 3rd International Biofilm Congress, jointly organized by South China University of Technology, South University of Science and Technology, European Society for Clinical Microbiology and Infectious Diseases, and Overseas Chinese Microbiology Society, was successfully held in Guangzhou from May 11 to 16, 2021. At the invitation of the organizing committee, Dr. Yuan Lei, a young teacher of our college, held the chair in Basic Foodborne Microbiology Sub-session. The Inhibitory effect of Lactobacillus plantarum metabolites against biofilm formation by Bacillus licheniformis was also studied. Moreover, in-depth discussion and exchange on the prevention and control of biofilms and other related issues were conducted with participants. At the same time, The "In Vitro Evaluation of Biofilm Formation by Lab into Different Stress" was conducted by Dr. Fedrick C. Mgomi, a doctoral student co-supervised by Professor Yang Zhenquan and Dr. Yuan Lei In our hospital "And received the silver award for the conference report. Since the establishment of our scientific research team, teachers of each team have been actively communicating with other countries in different fields, expanding foreign cooperation and expanding the influence of our school.