Abstract: In order to solve the problems such as air channel's transparent walls blurring, scratches emerging on carton film, and lacking automatic alarm in the air channel, the air cushion type carton collator in carton storing and conveying system was improved as following: 1) replacing the two wide sides with stainless steel plates and the two narrow sides with plexiglass plates in the air channel; 2) increasing the strength of the arc guide to reduce the rebounding noise of released carton; 3) adding an alarm system, wherein the collated carton triggered an approach switch to give out signal,and the time interval of a carton passing through the approach switch was used to judge whether the air channel was out of work. The results of application showed that: after improvement, air channel blurring and scratches on carton were effectively avoided, the draw resistance and the amount of tobacco loss from cigarette end did not change significantly, the rebounding noise of released carton reduced from 69 to 54 dB, there was audible alarm when air channel was out of work, and the stability of machine running was improved.