Abstract：Aromatic constituents of Huangdan Oolong tea were analysed with GC and MS and were compared in different green-making humid conditions.The major aromatic constituents of Huangdan Oolong tea were nerolidol, α-farnesene, linalool and its oxide, geraniol, pheny lacetal dehyde, indole, cis-jasmine lactone β-ionone cis-jasmone, benzyl acetate and so on.At the same temperature,the content of aromatic constituents were different, the aromatic quality in the 75% humid condition was better,which was more fragrant and kept longer.It proved that the green-making humid condition was one of the major factors to effected aroma of Oolong tea. Key words：Green-making condition; Humid; Oolong tea;Aromatic constituents

　　做青是乌龙茶制造的特殊工序，是决定乌龙茶品质的关键，受气候温湿度环境的制约。因此，做青环境温湿度是做