Gas Chromatography-Mass Spectrometer（GC-MS）combined with chemometrics methods were used to analyze volatile components in Santalum album Heartwood.The results showed that GC-MS chromatographs of petroleum ether extracts were similar to those of the essential oils distilled from Santalum album heartwood,which meant that the petroleum ether extracts could profile volatile components in Santalum album heartwood.The volatile components profiles of Santalum album from 4 habitats were similar in components but different in concentrations.A discriminate analysis（DA）model based on the percentiles of a-santalol,β-santalene, Z-a-trans-bergamotol,epi-β-santalol and β-santalol was proposed to identify Indian Santalum album.