The rice bran and amaranth contains various fatty acid and squalene etc. In this study, the oil including unsaturated fatty acid was extracted from rice bran and amaranth using SFE and MASE, and extracted oil was analysed with GC-MSD. Extraction pressure was from 2000 to 4000 psi, temperature was 40, 50, 70℃, respectively. Total extraction time was 5hr, extract amount was measured each 1hr. Extracted amount of rice bran oil, 50℃ should be more suitable for extraction. At constant temperature, it took a short time to extract total amount of extracted oil at high pressure. In case of squalene which was only extracted in SFE as the reduced density was increased, extracted amount of squalene was decreased. Amounts and compositions of extracted fatty acid of amaranth were different with those of each conditions, and the amount of conditions at 70℃ and 4000psi was the most extracted 1.016g. And a rapid and effective extraction, microwave-extraction, was preformed at the temperature of 40℃ and 50℃, respectively.