The system consists of carton erector and bottom sealer, automatic carton sealer, automatic strapping machine, 90 degree push conveyor and conveying frame, which has the function of continuous automatic carton open-bottom seal-fill-top seal and multi-belt strapping. It not only takes up less room but also reduces the packing cost. It is a fully automatic line with reliable working, convenient operation and simple maintenance. All the machines can be used separately as well.