A palletizing production line is designed to realize the palletizing of cartons in ton bags. Based on the basic characteristics of ton bags and cartons, this paper uses the bag supporting device to realize the automatic bag supporting of ton bags, and solves the problem that the palletizing cannot be carried out in the ton bags by using the method of high-level stacking and reverse nesting. The kinematics and dynamics characteristics of some important mechanisms are analyzed based on ADAMS software. The supporting bag stacking in the production line is a new type of design device, which can palletize at least 1200 boxes per hour; the lifting device can complete the stroke displacement of 1060 mm, and its maximum speed in ascending and descending is 400,377 mm/s respectively, the speed and acceleration of the lifting device are floating within a certain range, and the motion performance is relatively stable, which meets the actual demand; the force condition meets the expectation, and there is no extra external force hindering. The palletizing production line analyzes the rationality of the design scheme in advance, and the design of the production line is reasonable, which can meet the requirements of stacking cartons in ton bags, and ensure the stability in the palletizing process, which has certain reference significance for the design and development of relevant palletizing devices.