The aroma components in four cultivars of tea,Longjing, Xianhao, Tieguanyin and Jingshan, were analyzed using solid phase microextraction-gas chromatography-mass spectrometry method. We detected 53 kinds of aromatic substances in Longjing, 44 kinds in Xianhao, 45 kinds in Tieguanyin and 46 kinds in Jingshan. The results showed that the main compounds in cultivars were alcohols , the contents were 28.01%, 49.23%, 40.85%, 27.12%, the highest content of alcohols in four cultivars of tea were linalool , 1-octen-3-ol, nerolidol, phenylethyl alcohol. The high contents of terpene in Tieguanyin and jingshan were 18.08 %, 16 . 02 %, the major compounds were terpinolene , α-farnesene , limonene , β-elemene , valencene , caryophyllene, cedrene, etc. The high contents of ketones in Longjing, Xianhao and jingshan were 12.67%, 8.71%and 9.64 %, the major compounds were geranyl acetone, β-ionone, camphor, cis-jasmone, 3,5-octadien-2-one, etc. The total contents of isocamphane, azulene and 4-allylanisole in Longjing were 27.94%;the total contents of isocamphane, azulene and 2,5-di-tert-butyl-1,4-benzoquinone in Xianhao were 10.63%;the total contents of isocamphane, azulene, 2,6-di-tert-butyl-p-benzoquinone and 2,6-di-tert-butyl-4-methylphenol in Jingshan were 9.76%.% 采用固相微萃取-气相色谱质谱法分析了龙井茶、汉中仙毫茶、铁观音茶、径山茶的香气成分，分别鉴定出53、44、45、46个香气成分。结果表明：这4种茶叶的香气成分主要是醇类化合物，含量分别为28.01%、49.23%、40.85%、27.12%，芳樟醇、1-辛烯-3-醇、橙花叔醇、苯乙醇分别是4种茶叶香气中含量最高的醇类化合物；铁观音茶和径山茶香气中萜烯类化合物含量较高，分别为18.08%、16.02%，主要有萜品油烯、α-法呢烯、柠檬烯、β-榄香烯、巴伦西亚橘烯、石竹烯、雪松烯等；酮类化合物在龙井茶、仙毫茶、径山茶香气中的含量较高，分别为12.67%、8.71%、9.64%，主要有香叶基丙酮、β-紫罗酮、樟脑、顺-茉莉酮、3，5-辛二烯-2-酮等；龙井茶香气中异莰烷、甘菊蓝、草嵩脑的总含量占到27.94%，仙毫茶香气中异莰烷、甘菊蓝、2，5-二叔丁基-1，4-苯醌的总含量占到10.63%，径山茶香气中异莰烷、甘菊蓝、2，6-二叔丁基对苯醌、2，6-二叔丁基对甲酚的总含量占到9.76%。
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