Abstract: The production management and control in primary processing line became an onerous task as a result of grouping processing and the demands of flexible processing,therefore the processing line was digitized through 3 steps:standardized modeling of the processing line on the basis of platforms;establishing advanced sequence arranging system on the models to arrange production plans;synchronizing and matching the real processes with virtual ones on the basis of logistics technology.A flexible digital tobacco primary processing line capable of separately pretreating tobacco leaves of different grades and then grouping processing was established.The results of application showed that:after digitized improvement,the processing capacity of the 6000 kg/hour special primary processing line for brand "Furongwang" in Changde Cigarette Factory reached over 100 thousand kg of strips per day,production sequence arranging took less than 10 minutes each.The production was well organized and management was effective,online management of material and handling route was synchronously matched,and data were transmitted timely and accurately.The reliable and efficient running of primary processing line was ensured.