Abstract: 64 of flue-cured tobacco samples in Huidong County Sichuan Province were selected to study aroma styles characteristicand dominated factors influencing aroma styles. Based on variance analysis and cluster analysis of the indices of sensory quality,appearance quality, physical characteristic and chemical ingredients between different aroma type styles, the results showed thearoma type style of tobacco of Huidong were mainly faint scent, faint scent lean to middle one and middle scent lean to faint one andfaint scent close to full-bodied one; the sensory quality of typical faint scent tobacco and faint scent close to full-bodied one werebetter; for other aroma type style tobacco, the aroma type style was more close to faint scent, its smoking quality was the better;dominant factors influencing the aroma type style were leaf color, leaf density, sugar content, reducing sugar content, nicotine content,total nitrogen content, chlorine content, pH, the rate of sugar to nicotine, difference between total sugar and reducing sugar.