The essential oils of Artemisia gmelinii Web.were analysed by capillary GC/MS/DS techniques.The identified 31 compounds occupied 98.66% essential oils of A.gmelinii . The mian components of this oil were cineole (43.98%),camphor(11.56%),borneol(16.82%).The three contents (cineole, camphor, borneol) were higher than that of the A.argyl.