Abstract: OBJECTIVE To determine the linalyl acetate and linalool content in the essential oil from lavender with different extraction methods by GC. METHODS The capillary GC system consisted of a DB-5 capillary column(30 m×0.25 mm, 0.25 μm), and meta-dinitro-benzent was used as an internal standard. The detector was FID; inlet temperature was 230 ℃; split ratio was 20∶1; the flow rate was 1.0 mL·min^-1; the detector temperature was 250 ℃. The incept temperature programmed was 110 ℃ and kept for 3 min; programmed from 110 ℃ to 130 ℃ at 10 ℃·min^-1 and kept for 4 min, and then progammed to 250 ℃ at 20 ℃·min^-1 and kept for 1 min. RESULTS Linalool, linalyl acetate and the internal standard were separated in the chromatographic condition. The linalool content from the supercritical CO₂ extract in the volatile oil was 38.02%, the linalyl acetate content was 34.24%, the linalool content from the steam distillation extract in the volatile oil was 59.09%, the linalyl acetate content was 18.14%. CONCLUSION The method is accurate, selectivity, and can be used as quality control for the lavender oil extracted with different methods.