Abstract:The paper explore the volatile compounds and their relative contents of Mallotus oblongifolius（partridge tea）from different areas in Hainan Province，and found the characteristic chemical markers among different areas，as well as provided theoretical support for geographical origin traceability and flavor quality improvement of partridge teas. The partridge teas from 20 different geographical origins were used as experimental material in this study，the volatile compounds were determined by head-space solid-phase microextraction coupled to gas chromatography-mass spectrometry （HS-SPME/GC-MS）and submitted to principal component analysis （PCA）and hierarchical cluster analysis （HCA）for multivariate statistical analysis. The results showed that a total of 193 volatile components were identified in partridge teas，the 62 alkenes were the dominant volatile components and their relative contents accounted for 54.87 % to 79.73 %，followed by 37 aldehydes（1.61 %-8.03 %），37 alcohols（1.30 %-6.12 %），17 ketones（0.38 %-6.32 %），12 esters（0.03%-0.43%），8 acids（0.00%-0.70%），7 furants（0.07%-1.29%），3 phenols（0.00%-0.29%）sequentially.PCA and HCA results indicated that most samples were clustered in the 2-dimensional score plot drawn based on these properties，while the southern parts of Hainan island（Sanya，Wanning，Ledong，Lingshui and Baoting）were clustered. Partridge teas were rich in fragrant substance and had high research value，and could provide a theoretical basis for geographical origin identification and traceability of partridge teas from Hainan province.