Abstract:Fermented foods are a class of foods in which microorganisms participate in fermentation，thereby altering the flavor and nutritional components of foods.As an important field of metabolomics research，microbial metabolomics plays a significant role in analyzing the flavor of fermented foods，screening strains for fermented foods，and monitoring the fermentation process.This paper reviewed the research process of microbial metabolomics，summarized the application of microbial metabolomics technology in different fermented foods，and provided new methods and ideas for further revealing the fermentation principles of fermented foods，improving the quality of fermented foods，and optimizing fermentation processes.