Abstract: Antarctic krill oil is a kind of functional oil extracted from Antarctic krill, which is rich in phospholipids, astaxanthin, DHA and EPA. Antarctic krill oil has many physiological functions for the human body, such as preventing cardio-cerebrovascular diseases, promoting brain development, anti-oxidation, relieving gout and rheumatoid arthritis. At present, the extraction process of Antarctic krill oil is mainly composed of organic solvent extraction, supercritical-CO₂ extraction, sub-critical fluid extraction, and enzymolysis combined with organic solvent extraction, and pressing method. The extraction technology of Antarctic krill oil was summarized in this article, which provided reference for the production of Antarctic krill oil for enterprises.