Cyperue esculentust L. oil was a kind of high-quality edible oil rich in monounsaturated fatty acids, protein and other nutrients. This paper reviewed the main extraction technologies of Cyperue esculentust L. oil (supercritical CO₂ extraction, subcritical butane extraction, pressing, leaching, aqueous enzymatic extraction, aqueous extraction, ultrasonic-assisted extraction and microwave-assisted extraction) in recent years. By summarizing and analyzing the characteristics of different extraction technologies in practical operation and their effects on the basic physical and chemical properties, fatty acids, sterols, vitamin E and volatile compounds of Cyperue esculentust L. oil, it was suggested that the development of Cyperue esculentust L. oil in the future could focus on 3 aspects: Optimizing the key machinery and equipment of traditional oil extraction technologies (pressing, aqueous extration and leaching) to improve the quality of oil and reducing the production cost of new oil extraction technologies (aqueous enzymatic extraction, supercritical CO₂ extraction, ultrasonic-assisted extraction, subcritical butane extraction and microwave-assisted extraction) to increase the popularization feasibility, strengthening the cultivation of new varieties of Cyperue esculentust L. oil with high oleic acid and increasing the research and development of its functions, so as to be beneficial to the industrialization of Cyperue esculentust L. oil.