应用ＧＣ、ＧＣＭＳＣＯＭＰ法从采自甘肃天水地区的木香薷（ＥｌｓｈｏｌｔｚｉａｓｔａｕｎｔｏｎｉＢｅｎｔｈ）挥发油中分离出６９个化学成分．鉴定了以１８桉叶油素（２２３５％）、反式石竹烯（１３８６％）、莰醌（４６％）、反式β罗勒烯（３２１％）、苯甲醇（３７１％）、２（２′３′环氧３′甲基丁基）３甲基呋喃（１０６７％）等为主的５５个成分．其中有２６个成分为首次从木香薷中检出．其主要成分占挥发油总量的９４％以上 Sixty-nine chemical constituents were isolated from the essential oils of Elsholtzia tôntoni Benth collected from Tianshui, Gansu by GC and GC-MS-COM methods. In this study, the effects of 1 8 eucalyptol (2235%), trans-caryophyllene (1386%), 莰 quinone (46%), transβ-oculeolyn %), Benzyl alcohol (371%), 2  (2’3’ epoxy  3’methylbutyl)  3methyl furan (10  67%) and other mainly 55 ingredient. Of these, 26 were detected for the first time from Mochida. Its main component accounts for more than 94% of the total volatile oil