Abstract: Based on 989 publications indexed in CNKI and 995 publications from the Web of Science (WOS), this study systematically analyzes the development of research on regional extreme precipitation in China from 2004 to 2023 using CiteSpace for visual knowledge mapping. Key aspects such as publication trends, research collaborations, and thematic focuses are examined. The results are as follow: (1) From 2004 to 2023, the annual number of journal articles on “extreme precipitation” in both Chinese and English has shown an increasing trend, with English-language publications surpassing Chinese ones after 2018. (2) The primary contributing scholars in the field included Zhang Qiang, Wang Xiaojun, Yin Yixing, and Chen Xiaohong. For research institutions, Nanjing University of Information Science & Technology, Institute of Atmospheric Physics, Chinese Academy of Sciences, and Chinese Academy of Meteorological Sciences played the main roles. (3) The research hotspots focused on data assessment, spatiotemporal evolutionary characteristics, and occurrence mechanisms of extreme precipitation. Future research should pay more attention to integrating multi-source data products with AI-based meteorological large models for high-precision spatiotemporal monitoring and impact assessment of extreme precipitation, to help regional disaster prevention and mitigation.