Abstract: In this article, some bioactive components such as flavone、Chlorogenic Acid、Aucubin are extracted from the Eucommia ulmoides by refluence extraction method、Ultrasonic-assisted extraction method and microwave-assisted extraction method. The results show that the ethanol refluence extraction with Ultrasonic wave assisted method is the best way. Upon the comparative experiments and the orthogonal test, the optimum extraction conditions are: the proportion of the Eucommia ulmoides and ethanol is 1:12, the concentration of the ethanol is 60%, pre-process sample 30 min in 75℃ with high frequency of Ultrasonic wave method. Then we extract the bioactive components 40 min at the active temperature 85℃ with refluence extract method. Repeat the process again. The total extraction yield of active compounds is as high as 20.95%, and the total extraction yield of the flavone and Chlorogenic Acid is as high as 3.81%.
Key words：Ultrasonic extraction；Eucommia ulmoides；Flavonoid compound；Chlorogenic Acid
