Abstract: The difference of the 45 aroma components among enriched,clear and intermediate in flue-cured tobacco were studied with 139 leaf samples in 2011.Results showed that significant or extremely significant differences existed in some aroma components among aroma styles.In general,variation in most aroma components of clear aroma tobacco was greater than that of enriched aroma tobacco and intermediate aroma tobacco.The enriched aroma tobacco had significantly higher contents of furfuryl alcohol,benzaldehyde,Megastigmatrienone A,Megastigmatrienone B, clear aroma tobacco contained significant higher Neophytadiene,palmitic acid,intermediate aroma tobacco had significantly higher contents of isophorone,β-damascone,Megastigmatrienone A,Megastigmatrienone B,Megastigmatrienone C,Megastigmatrienone D,dihydroionone.There’s no significant difference of other indexes between three kinds of aroma of flue-cured tobacco.