The Chinese Conference on Mass Spectrometry 2020-2023, organized by the Mass Spectrometry Division of the Chinese Physical Society, the Mass Spectrometry Committee of the Chinese Chemical Society, and the Analytical Instrumentation Division of the Chinese Society of Instrumentation, will be held on June 9-13, 2023, in Hangzhou, Zhejiang Province, China. Dr. Xiaoyan Sun, Dr. Mengdi Guo and Jian Zhou from our group attended the conference, and Dr. Xiaoyan Sun gave an invited lecture entitled "Cluster Ion Reactions Based on Mass Spectrometry".