利用GC-MS技术检测并比较了3月至10月竹叶花椒（Zanthoxylum armatum DC.）叶挥发油的成分组成和相对含量差异。结果表明：3月至10月竹叶花椒叶挥发油含量为0.06%~0.53%，且在不同月份间存在明显差异。在竹叶花椒叶挥发油中共鉴定出41种挥发性成分，其中，烯类成分最多（18），醇类成分次之（11），而酯类、酸类、醛类、酮类和氧化物成分均较少，分别只有5、3、2、1和1种。竹叶花椒叶挥发性成分在4月最多（36），在9月最少（12）。不同月份竹叶花椒叶挥发性成分均以烯类和醇类为主，且主要成分为桉叶油醇和D-柠檬烯。结合其他研究结果，推测竹叶花椒叶挥发油可能具有抑菌活性。

The differences in composition and relative contents of components in essential oil from leaves of Zanthoxylum armatum DC. from March to October were detected and compared by GC-MS technology. The results show that the content of essential oil from leaves of Z. armatum from March to October is 0.06%-0.53%, and are evidently different among different months. Forty-one volatile components are identified in essential oil from leaves of Z. armatum in total, in which, alkenes are the most (18), followed by alcohols (11), while esters, acids, aldehydes, ketones, and oxides are all less, with only 5, 3, 2, 1， and 1 components, respectively. The volatile components from leaves of Z. armatum are the most in April (36), but the least in September (12). Alkenes and alcohols are both dominant in the volatile components from leaves of Z. armatum in different months, and the main components are eucalyptol and D-limonene. Combined with the results of other researches, it is speculated that the essential oil from leaves of Z. armatum may possess anti-microbial activity.