Abstract: In order to use Yunnan flue-cured tobacco leave in cigarettes of "Liqun" brand more effectively, the grey incidence analysis of nicotine,potassium,chloride,total nitrogen,total sugar,the ratio of sugar to nicotine,and the ratio of potassium to chloride in 44 flue-cured tobacco samples from 8 growing areas in Yunnan province in 2009 with the requirements of "Liqun" brand cigarettes was conducted,and the sensory quality of the samples was panel tested. The results indicated that grey incidence degrees of the samples from various areas with the requirements for "Liqun" brand cigarettes were 0.84,0.80,0.72,0.71,0.68, 0.67,0.59,and 0.53,respectively,which basically agreed with the results of sensory quality evaluation.