The work aims to improve the cut tobacco drying process by analyzing the existing literature and existing equipment, so as to solve the problem of waste of subsequent processing caused by an excess of over-dried cut tobacco in the drying process of cut tobacco. Through analysis on the causes for over-dried cut tobacco and the relationship between incoming moisture and cut tobacco drying temperature, an anti-delay MFA controller was adopted to control the temperature and the steam and water pipeline systems of the existing cut tobacco drying equipment were reformed. Water and air-pressure dual-medium nozzles were added to the tobacco head and tail to increase the humidity, so as to improve the utilization rate of cut tobacco. The percentage of over-dried cut tobacco in each batch was reduced from the original 0.624 % to 0.16 % after continuous debugging and trial operation. The project is put into operation by improving temperature control and installing humidifying device to reduce the amount of over-dried cut tobacco. The actual operation results show that, the system runs reliably, the amount of over-dried cut tobacco is significantly reduced, the waste of raw materials is reduced, and the utilization rate of cut tobacco and cigarette yield are improved.