To investigate the flavor type and aroma note characteristics of tobacco leaves in different producing areas, forty-eight tobacco samples in C3F grade from eight raw material sites of Guizhou tobacco were conducted with sensory evaluation in continuous two years.Results showed that the differences were significant in hay fragrance, Are sweet, Coke sweet and Scorch a-roma of different aroma type.Main aroma note of strong flavor leaves were hay fragrance, Coke sweet, Rosa banksiae, Scorch aro-ma and Nutty flavor, and Coke sweet stands out of all.Main aroma note of light flavor leaves were hay fr...