[Objective] The propose of study was to optimize the technology for extracting perilla oil by supercritical CO2 extraction and provide the scientific basis for the development of the resources of perilla.[Method] The supercritical CO2 fluid was used as the extraction solvent to extract the perilla oil from the drug material of perilla seed.With the oil yielding rate of the extracted perilla seed as the index,the optimum technology for extracting perilla seed oil by supercritical CO2 extraction through L9(33...