Under the same other manufacturing conditions, cut tobacco structure, slim cigarette physical quality, mainstream smoke components and sensory quality were analyzed with different cutting widths such as 0.6, 0.7, 0.8, 0.9, 1.0 mm. The influence of cutting width on cut tobacco structure, physical indexes, mainstream smoke content and sensory quality of slim cigarette was explored. The results were showed as follows: ① In the range of 0.6～1.0 mm, whole cut rate was positively correlated with cutting width, and broken cut rate was negatively with cutting width. ② There were all significant negative correlations between draw resistance, total ventilation rate, tar content and cutting width. At the cutting width of 0.6～0.8 mm, and the residual or relative residuals between slim cigarette weight, draw resistance, hardness, total ventilation rate, tar content value and corresponding design value were relatively close to 0. ③ Slim cigarette sensory quality was gradually improved as the cutting width decreases. Combined with the physical indexes, mainstream smoke content, sensory quality and cut tobacco structure, shredding and cost under the different cutting widths, cutting width of 0.7～0.8 mm was suitable to slim cigarette.