Ligustrum lucidum (Glossy Privet, Chinese Privet or Broad-leaf Privet) is a species of privet native to the southern half of China. The leaves are opposite, glossy dark green, 6-17 cm long and 3-8 cm broad. The flowers are similar to other privets, white or near white, borne in panicles, and fragrant. It is the largest species in the genus, growing as a tree up to 25 m tall. Oleanolic acid and ursolic acid are the main bioactive compounds in fruit of Ligustrumlucidum Ait, which possess anti-inflammatory, antioxidative, antiprotozoal, antimutagenic and anticancer properties. In this study, the ultrasound-assisted extraction of oleanolic acid and ursolic acid from L. lucidum Ait was investigated with HPLC-photodiode array detection. Effects of several experimental parameters, such as type and concentration of extraction solvent, ratio of liquid to material, extraction temperature and extraction time, on extraction efficiencies of oleanolic acid and ursolic acid from L. lucidum were evaluated.