Abstract:The essential oil was obtained at a yield of 0.51% by steam distillation from the leaves of Syzygium buxifolium. The main components were identified by GC-MS as caryophyllene (37.623%),α-selinene (9.627%),β-selinene (9.408%) and copaene (5.360%). Antibacterial experiments showed that the essential oil had stronginhibitory and bactericidal activities against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Proteusvulgaris and Sarcina lutea.