Abstract: In order to reveal the effects of cigarette burning rate on its ash integrity, ash color value, ash crack rate, ash shrink rate, burn line width, burn line uniformity, burning rates of 46 cigarette samples were measured using machine vision technology under the ISO smoking regime. Statistical analyses were employed to investigate the correlation between the ash integrity and burning rate of the cigarettes. The results showed that: 1) Puffing was an important factor affecting the ash integrity of the test cigarettes, and the shrink rate and crack rate of ash column also increased. The burn line became wider and more irregular and the ash color was whiter during puffing. The seam of cigarette paper improved the ash integrity of the ash column, and effectively reduced the large increase of the ash crack rate of the section with single layer cigarette paper caused by puffing. 2) The variations of ash color value and the burn line uniformity were small, the variations of the burn line width, burning rate and ash shrink rate were medium, and the variation of ash crack rate was large. 3) The burning rate significantly positively correlated with ash color value and significantly negatively correlated with ash crack rate, ash shrink rate and burn line width. However, its correlation with the burn line uniformity was not significant. 4) With the increase of cigarette burning rate, the value of ash color increased first and then tended to be stable, the ash crack rate decreased first and then increased, and the ash shrink rate and burn line width decreased gradually.