Abstract:The Antarctic krill oil is a multifunctional oil extracted from antarctic krill which contains abundant of phospholipids，omega-3 unsaturated fatty acid such as eicosapentaenoic acid（EPA），docosahexaenoic acid（DHA），and astaxanthin，which are beneficial for human physiological functions including cardiovascular and cerebrovascular disease prevention，antitumous effects，and brain function improvement.The current extraction techniques of antarctic krill oil includes organic solvent extraction，supercritical-carbon dioxide extraction subcritical extraction，and enzyme-assisted extraction combining with organic solvent extraction and expelling method.The article reviewed extraction techniques of antarctic krill oil and its effects on human physiological functions，which provided references for the development and application of antarctic krill oil.