Abstract: In order to improve the drying quality of cylinder dryer with corrugated heating plate,the effects of 4 technological parameters(temperature of hot air,rotational velocity of cylinder,opening of hot air valve and wet air exhaust valve) on the quality of dried cut tobacco were studied with orthogonal experiment and comprehensive equilibrium method,the results showed that:within the tested range,the optimal parameters were temperature of hot air 90℃,rotational velocity of cylinder 9 r/min,opening of hot air valve and wet air exhaust valve 50% and 60%,respectively.The results were verified by testing and practical application.