In order to study the effects of cut tobacco width and drying methods for different cigarette sizes on cigarette physical characteristics, mainstream cigarette smoke and cigarette making machine operating conditions, tobacco with cutting width of 0.8, 0.9, and 1.0 mm and drying methods of KLD and HDT were selected for experiments on middle, slim and short cigarette making machines. For the same size cigarettes, cigarette circumference and weight was instant. Results show that: ① Compared to cylinder drying, for the pneumatic drying cigarettes, pressure drop was increased, hardness was increased, and content of loss of tobacco from the ends was decreased. ② Compared to cylinder drying, trimmer disc position of cigarette making machine with pneumatic drying tobacco was increased, density amount was decreased. ③ With the cut tobacco width decreased, dust content of cigarettes was increased, mainstream cigarette smoke amount of CO, Tar, TPM and Nicotine was increased, and loose and rate of slim and middle cigarettes was decreased. ④ Cut tobacco width of 0.8 and 0.9 mm was recommended for slim and middle cigarettes to solve the problem of high loose and rate. ⑤ HDT pneumatic drying tobacco was recommended for short cigarettes to solve the problem of high content of loss of tobacco from the ends.