Abstract: To investigate the research progress in the field of microbial electrosynthesis (MES), a bibliometric analysis with visualization tools (e.g., CiteSpace and VOSviewer) was conducted on 737 MES-related publications retrieved from the Web of Science Core Collection (WoSCC) database between 2011 and 2025. The analysis systematically covered publication trends, journal sources, collaboration networks, as well as research hotspots and frontiers. The results indicate that the publication trend in the MES field from 2011 to 2025 presents a three-stage growth pattern: "Technological emergence phase - Accelerated development phase - Maturation and stabilization phase". Meanwhile, MES exhibits a multidisciplinary nature integrating energy, environment, biology and materials. China ranks among the top worldwide in total publications, output of high-productivity institutions and scholars, demonstrating strong research vitality and development potential. However, due to objective factors (e.g., a later research onset and the timeliness of publications), China still has room for improvement in several aspects, including the proportion of highly cited papers, average citations per article, author-level academic influence, and international collaboration network density. At present, MES has become a mature and active research direction with three key hotspots: gas fermentation and methanogenic production focusing on efficient conversion and storage of CO₂ into sustainable fuels, value-added product synthesis and chain elongation mechanisms aiming to improve the economic value and selectivity of target products, and electron transfer pathways and functional microbial regulation striving to reveal electron transfer rules and optimize microbial communities. Future research should focus on the in-depth elucidation of chain elongation mechanisms and hydrogen evolution reactions, promoting the development of MES toward efficient carbon fixation, high-value products and system stability. The ultimate goal is to establish MES as a core technology for large-scale CO₂ fixation and resource recovery.