Abstract:The supecritical carbon dioxide fluid ectraction(SFE-CO2) of essential oil and oleoresin from black pepper is presented in this study. Firstly, low pressure and temperature was adopted for selective extraction of black pepper essential oil. Then, high pressure and temperature was introduced in the presence of a polar entrainer for black pepper oleoresin riching in piperine. Moreover, black pepper essential oil obtained by supercritical CO2 extraction was purified by molecular distillation into colorless and tasteless product which could be used in the daily chemical industry, aroma components were also analyzed by GC-MS. The experimental results showed that the optimum conditions of supercritical CO2 extraction of black pepper essential oil were 10MPa of pressure, 35℃ of temperature and 2h of time, the yield was 3.01%. The optimum conditions of oleoresin extraction were m(raw material):m(95% ethanol)=1:1, 30MPa of pressure, 50℃ of temperature and 4h of time, the yield was 7.88%, the piperine content in oleoresin exceeded 65%.