Abstract: In order to inspect all the six sides of a cigarette packet including the side that contacts with the conveying belt, the imaging inspection device in GC packer was modified, wherein the first CCD camera was arranged to inspect the three sides of a cigarette packet, thereafter the packet was turned by 180° through the new added turnover channel to have the other three sides of the packet exposed to the second CCD camera. To ensure effective inspection, the contacted packets came out of the turnover channel were separated by a new designed separator to make space between the sequential packets. Cigarettes of brand "Hongtashan Soft Classic (1956)" were tested in Shenyang Cigarette Factory, and the results showed that the average number of rejected cigarette packets due to appearance defects on the side in contact with the conveying belt was 36.33 packets/month; the frequency of defective packets after artificial inspection reduced from 2.17 times/month to 0. This technology provides a support for promoting the appearance quality of finished cigarette packets.