The sprocket wheel and pallet cars of industrial sintering machine utilize the gear and pin rack gear meshing to drive focused on the defects of velocity fluctuation and arching during running process, motion features for sprocket wheel and pallet cars line were analyzed. In this paper, based on virtual prototype motion simulation, using ADAMS simulation software, the regulars of motion which are the velocity and acceleration of the upper and lower pallet cars line and the angular velocity of tail sprocket wheel were analyzed. And then, the reasons of velocity fluctuation have been found. Simulation analysis results are consistent with the actual situation. We obtain the movement rule of traditional type sintering machine. Study results can provide the theoretical basis which can be used to solve the problems of velocity fluctuation in future.