To explore a new way for improving aroma quality of tobacco leaves, the middle part leaves of K326 were used as material, and the tobacco flavor matter and smoking quality were studied after adding 4 kinds of perfume plants (Red rose, Rose geranium, Lavender, Orchid sage) into the samples in the bulk curing. The results showed that positive effects of the four perfume plants on total aroma components performed as Red rose > Rose geranium > Lavender > Orchid sage. And some components in flue-cured tobacco with addition of Red rose, such as degraded products from chromoplast pigment, cembrane, other aroma components, total aroma components without neophytadiene and total aroma components were increased by 19.64%, 56.45%, 9.50%, 24.52% and 19.77%. The treatment of Rose geranium had positive effects on aroma contents and degraded products from chromoplast pigment, cembrane, total aroma components without neophytadiene, and total aroma components were increased by 5.52%, 7.20%, 4.71%, 4.78% and 5.10% respectively, while Llavender and Oorchid sage added into the tobacco were not favorable to the accumulation of most aroma components. The results of sensory evaluation demonstrated that the tobacco leaves with addition of Red rose in bulk curing were much better than the control, and its taste performed as soft aroma quality, small irritation, clean and comfortable aftertaste and suitable strength. While the sensory evaluation of other treatments were not so good compared with the control. In conclusion, the addition of perfume plants has significant effects on aroma quality of cured tobacco leaves. Difference existed in tobacco taste because different perfume plants and aroma quality of middle leaves added with Red rose could be improved obviously.