The volatile components were extracted from leaves of Indocalamus latifolius by simultaneous distillation and extraction, and analyzed by gas chromatography-mass spectrum (GC-MS). From total 86 components, 64 components were identified, which accounted for 83.86% of the total peak area of the volatile oil. Among them, the major componnets were hexadecanoic acid (18.57%), anethole (11.16%), 6,10,14-trimethyl-2-pentadecanone (7.15%), oleic acid (3.31%), phytol (3.06%), ionone (3.04%), 2-methoxy-4-vinylphenol (2.51%),3-(2-hydroxyp...