Palletizing robot is mainly used in the cartons, plastic boxes, bags and so on material stacking and handling, widely used in drinks, bottled water, flour, fertilizer production. In mechanics, mechanics, electric hydraulic pressure technology, automatic control technology, sensor technology, single-chip computer technology and computer technology and other fields, has become the modern machinery manufacturing is an important component part of the production system.Palletizing robot, designed for palletizing robot, stacking method determines the parallel bar, palletizing robot is the most suitable for pallet. Palletizing requirements is rectilinear motion. Vertical direction and horizontal direction of positioning, the shape of the plate, the style of the piling and stacking position are straight line, so the linear movement is the most suitable for pallet. Parallel shaft palletizing robot directly on the mechanical structure to achieve the linear motion.