PURPOSE: A method for extracting an anti-cancer active ingredient from garlic is provided to improve the yield of diallyl sulfide, diallyl disulfide, and diallyl trisulfide and to simplify the extracting process. CONSTITUTION: A method for extracting an anti-cancer active ingredient from garlic comprises: a step of washing and pulverizing garlic(S101,S103)； a step of putting the pulverized garlic into a steam container and heating by steam heat(S105)； a step of evaporating the garlic oil and discharging the garlic oil(S107)； a step of centrifuging the garlic oil(S109)； and a step of storing the garlic concentrated oil(S111). The garlic concentrated oil contains 2.38 wt% of diallyl sulfide, 60.84 wt% of diallyl disulfide, and 33.48 wt% of diallyl trisulfide. [Reference numerals] (AA) Start； (BB) Finish； (S101) Washing step； (S103) Pulverizing step； (S105) Heating step； (S107) Extracting step； (S109) Isolating step； (S111) Storing step본 발명은 항암유효성분이 함유된 마늘농축오일의 추출방법에 관한 것으로, 더욱 상세하게는 마늘을 세척하는 세척단계, 세척된 마늘을 분쇄하는 분쇄단계, 분쇄된 마늘을 증기통에 투입하고 증기열로 가열하는 가열단계, 가열된 증기통에서 추출된 마늘유를 증발시켜 냉각기로 배출하는 추출단계, 전술한 냉각기로 배출된 마늘유를 원심분리기로 분리하는 분리단계 및 전술한 분리단계를 통해 분리된 마늘농축오일을 저장하는 저장단계로 이루어진다.
