Abstract: The volatile oil from Pinus dabeshanensis needles was extracted by supercritical CO2 fluid (SFE-CO2). The chemical components were separated and analyzed by gas chromatography-mass spectrometry (GC-MS). The results showed a total of 33 compounds were successfully identified by SFE-CO2, representing 81.70% of the total compounds, of which terpenes (36.65%) , alcohols (22.96%), alkanes (11.33%) and esters（10.76%）were the major constituents. (-)-spathulenol (11.55%), d-cadinene (10.72%), α-cadinol (8.65%), caryophyllene (7.26%) and 2,6,6-trimethylbicyclo \[3.1.1\]heptane (6.43%) were the main components.

Key words: Pinus dabeshanensis, volatile oil, supercritical fluid extraction, gas chromatography-mass spectrometry