Abstract:Carotenoids are natural pigments with a variety of bioactivities of anti-oxidation， anti-cancer， pre－ vent senility， widely used in food， medicine， health care， cosmetics and other fields. The method of ultra－ sound-assisted extraction with a series of advantages such as energy saving， time-saving and high efficiency， has received substantial attention. In current work， combined with the related literature domestic and foreign， the mass transfer mechanism of ultrasound-assisted extraction of carotenoids was explained. The applications and developments of ultrasound -assisted extraction technology in extracting carotenoids were investigated in present paper as well. Meanwhile， in order to provide references for the researches of ultrasound-assisted ex－ traction of carotenoids， the prospect of ultrasonic extraction technology for industrial field in the future was also presented.