Food packaging bags are both practical and aesthetic. Food packaging bags should be able to protect foods very well. For foods that are prone to rot and deterioration, vacuum packaging bags should be used to extend their shelf life. Therefore, food packaging bags should have strong practicability. At the same time, the food packaging bag will also represent the image of the production enterprise and the grade of the food. Therefore, the food packaging bag should also have a certain aesthetic appearance and improve the grade of the product, thereby promoting the marketing of the product and the promotion of the corporate brand.