Soy sauce is very popular in China because of its unique freshening effect.In this paper,using the umami substances in soy sauce as the re-search object,the various umami substances contained in soy sauce such as amino acids,nucleotides,umami peptides and organic acids were summa-rized,and their detection methods were summarized.Meanwhile,the current evaluation methods of umami substances at home and abroad were sum-marized,in order to combine the detection and evaluation methods of umami substances and provide references for further research on umami sub-stances in soy sauce.