【Objective】The present experiment was conducted to optimize intensive curing technology for improving usability of upper flue-cured tobacco leaves. 【Method】The effects of different fan speeds on chemical composition and sensory quality of tobacco leaves（15t h-17t h）（cultivar G80） were studied using fuzzy comprehensive evaluation method.【Result】Compared to conventional intensive curing (control)， the chemical composition， sensory quality and other quality parameters in upper leaves of flue-cured tobacco were improved after lowering the fan speed. The fan speed at 1440 rpm during yellowing stage and early leaf-drying stage， 960 rpm during late leaf-drying stage and 720 rpm during stem-drying stage gave the best results. 【Conclusion】Lowering the fan speed appropriately during bulk curing improved the chemical composition and sensory quality of upper flue-cured tobacco leaves.