Abstract: In order to study the relationship among main agronomic attributes and yields and output value of flue-cured tobacco under present production conditions, correlation and grey correlation analyses were used to analyze the influence of agronomic attributes, such as plant height, stem circumference, average leaf area, proportion of superior to middle grade tobacco, single leaf weight, on yields and output value. Furthermore, 24 varieties were clustered by cluster analysis. The results showed that single leaf weight, proportion of superior to middle grade tobacco, plant height, stem circumference, average leaf area were positively correlated with yield and output value of tobacco; the single leaf weight had the greatest impact on yield of tobacco with high significant positive correlation. The proportion of superior to middle grade tobacco and single leaf weight played important parts on the output value of tobacco. Through cluster analysis, test varieties were divided into three groups. The second group which contained varieties 4008 and 4017 had the highest production potential.