Abstract:Baijiu fermentation requires the participation of a variety of brewing microorganisms.Research on the types and functions of microorganisms in the process of liquor fermentation is necessary to improve the quality of Baijiu.With the development of modern biological and mass spectrometry technologies，analyses of brewing microorganisms has become more efficient and comprehensive.Plate separation，polymerase chain reaction-based microbial fingerprinting，high-throughput sequencing and other technologies in the research of Baijiu brewing microorganisms，as well as the determinations of correlations between microorganisms and flavor compounds，can provide a basis for systematic research of Baijiu brewing microorganisms.