γ-Lactones is a kind of important aroma compound existing in several food products(such as fruit,wine and baijiu).On the base of the important role in the aroma and flavor of food,8 γ-lactones in Chinese liquors(baijiu) were identified and quantified using the method of liquid-liquid extraction(LLE) and solid phase extraction(SPE) coupled with gas chromatography mass spectrometry(GC-MS),respectively.This method was shown to be rapid,selective and with high correlation coefficient(R~2≥0.9908,γ-dodecalactone).The detection limits of the method range from 0.22μg/L(γ-decalactone) to 4.30μg/L(γ-nonalatone),and well below the olfactory thresholds of compounds.The relative standard deviation(RSD) is less than 15%.This method can applied to γ-lactones quantification in Chinese liquors.