Abstract: For improving tobacco rods transfer,an analytical model was established based on the movement of transfer from spider to transfer drum in PROTOS2-2 ultra-high-speed cigarette maker,and a numerical model was also developed by adopting virtual prototype motion simulation technology,to output the trajectory curves of motion.By contrasting the movement trajectory obtained from the analytical model with that of numerical simulation model,the numerical simulation model was validated.According to the numerical model,the rod transfer was analyzed by comparing the relative displacement and relative velocity of the rod passage centers of active/fixed hands against that of the inside/outside rod passage centers of the suction carriers on the spider.The results proved that the system provided a gentle transfer of tobacco rods to the transfer drum.