Abstract: To accurately locate the defective cigarettes and overtime cigarettes in the YF17A cigarette reservoir system, a cigarette quality tracing system was designed based on an intelligent tobacco machinery platform. The quality tracing system consists of three functional modules: 1) Cigarette information recording module is configured to record the buffering and output status of cigarettes in the reservoir through a speed-time chart. 2) Cigarette locating module is configured to create a simulation diagram of the storage space in the reservoir, locate and display the cigarettes that enter the reservoir within each buffering cycle to facilitate quick and accurate rejection of defective or overtime cigarettes. 3) Cigarette storage time warning module is configured to remind operators to empty the reservoir timely to control the occurrence of overtime cigarettes. The quality tracing system was tested on "Baisha (Jingpin)" brand cigarettes in Changsha Cigarette Factory. The results showed that the tracing system could accurately locate the defective cigarettes in the reservoir, and the average time for rejecting defective cigarettes was reduced from 12 minutes to 3 minutes each time. This technology helps to improve the efficiency of cigarette production.