Allicin (Diallyl thiosulfinate) is an organic sulfur compound, extracted from the bulb of Allium Sativum. Allicin has broad-spectrum antibacterial properties and has been used in breeding, agriculture, and animal disease prevention and control. With more in-depth research on allicin, the application of allicin will be more extensive. The article mainly reviews the pharmacological effects, application, extraction technology and detection technology of allicin. In particular, it expounds the advantages and development direction of various detection techniques, in order to provide technical support for the subsequent research of allicin.[Chinese Fishery Quality and Standards, 2023, 13(1):60-67]