Abstract: To match the capacity of cut tobacco case filling system in tobacco store room with that of tobacco flavoring system, the capping/uncapping machine, case-sleeve and pressing mechanism in GARBUIO case filling system were modified on the premise of no addition to the number of silos. By simplifying case filling action, and synchronizing some auxiliary case filling actions, the waiting time for flavored cut tobacco to enter the silos was reduced. The case filling system in tobacco store room of Longyan Tobacco Industrial Limited Corporation was tested. The results showed that the average case filling capacity reached 11 134.6 kg/h, which was larger than the tobacco flavoring capacity (10 000 kg/h); and the average waiting time for flavored tobacco decreased by 0.23 h/batch. This technology provides a support for promoting the production efficiency of tobacco primary processing.