Food packaging can be divided into metal, glass, paper, plastic, and composite materials according to packaging materials, and can be divided into cans, bottles, bags, bags, rolls, boxes, boxes, etc. according to the type of packaging, and can be divided into cans according to packaging methods. , Bottling, Enveloping, Bagging, Wrapping and Filling, Whole Set, Sealing, Labeling, Spraying, etc.; It can be divided into inner packing, second packing, third packing, etc. according to product level.