Objective: To investigate the technology condition of dextroborneol from Cinnamomum camphora leaves in Yunnan by supercritical CO2 fluid extraction. Method: The content of dextroborneol was determined by gas chromatography(GC)

to analysis the conditions of pressure

temperature

CO2 flow rate by orthogonal test and analysis extraction time by single factor test. Result: The optimum extraction condition was as follows:extraction pressure was 30 MPa

extraction temperature was 45 ℃

CO2 flow rate was 20 L·h-1

extraction time was 90 min. Conclusion: The optimum extraction technology had high extraction yield

and it was a extraction and separation method which had considerable potential for development.