This packaging production line is composed of an automatic carton erector, an automatic carton packer, an automatic folding and sealing machine, and an unmanned palletizing line, mainly realizing the automatic cartoning of canned food and its intelligent palletizing into square - shaped stacks. It is mainly suitable for automated intelligent packaging of products such as food, medicine, and daily chemicals. It saves labor, has simple materials, and highly intelligent packaging (able to complete 10,000 automated packaging operations in one day, with manual packaging taking 10+ hours), enhancing the enterprise image and industry competitiveness.