The vertical swing chain is mainly used for the pretreatment and electrophoresis process of the automobile body coating line.It is used in conjunction with the sled conveyor and is a new type of automatic production line with high speed and continuous operation.This paper expounds the design process and calculation method of vertical swing rod conveyor chain from the overall planning,process layout,design and determination of swing rod conveyor chain,tension calculation of chain traction chain,and drive power calculation through project examples.