The cigarette packaging machine pusher, which has a lot of parts, has high precision requirement in design, manufacture, and installation. It is difficult to analyze the pusher accurately with traditional method for its complex design and contour line. Mechanism splitting method was applied to split components and the mathematical models of bipolar vector function were established for the components. The kinematics equations of package pusher were obtained. The purpose was to provide theoretical basis for further research in cigarette packaging machine with pusher mechanism.