A method for detection of flavor compounds in soy sauce by SPME-GC was developed.The analysis parameters of extraction time,sample temperature,content of sodium chloride,desorption time were optimized.The optimized method was as follows:10mL soy sauce was placed into 20mL vial and saturated with 1g sodium chloride.The sample was extracted using 85μm PA fiber for 30min at 40℃,then the volatiles were desorbed from the fiber at temperature of 230℃ for 3min.The method is simple,quick,reproducible and sensitive.