Abstract: During recent years, bulk curing barns were widely used in China. However, a number of problems, such as shortage of roasted aroma, tight structure and light color still exist. This is because that in recent years, the construction of the bulk curing barn has rapidly developed, but the flue-curing process is still mainly the regular barn flue-curing process, which is not suitable for all the regions and for the bulk curing barn. In order to explore the curing process of Yunyan 87 under rainy conditions in Jiangxi Province, an experiment was carried out to study the effect of different curing processes on the quality of flue-cured tobacco through the use of intelligent ovens. The results showed that:Compared with the traditional curing process, the optimized curing process that was optimized based on the curing characteristics of tobacco leaves in rainy areas was conducive to reduce starch content, increase contents of total sugar and reducing sugar, and increase the proportion of degradation of plastid pigment, but had no obvious effect on contents of other mineral elements. The appearance quality of tobacco leaves was improved, and grade structure, average price and the proportion of high class leaf increased. The smoking quality of tobacco leaves was significantly improved, especially in the aspects of offensiveness, irritation and aftertaste.