The work aims to improve the cigarette pushing mechanism of GD-H1000 cigarette packaging machine, so as to enhance its stability during the production. The failure rate of cigarette pushing mechanism was high in the production process. Based on the force analysis of the mechanism, it was certain that the effect of fast and severe abrasion of the plastic slider in the mechanism on the operational stability of the cigarette pushing mechanism under the action of alternative load was the main cause for the high failure rate of the mechanism. Then, the plastic slider in the mechanism was improved as the slider bearing to reduce the slider abrasion. Meanwhile, one group of slider bearings were added as virtual constraint to improve the operational stability of the mechanism, and the mechanism structure was improved by means of increasing the lubrication system for the slider bearing, etc. The operational stability of the improved cigarette pushing mechanism was significantly improved and the shutdown time was reduced from 116 h/year to 7 h/year after the improvement. The optimal design can effectively reduce the shutdown time of the cigarette pushing mechanism and strengthen its stability, thus enhancing the comprehensive operating efficiency of the mechanism.