Packaging is the external performance of products and marketing means. For packaging, many countries have defined a concise and clear definition. For example, the United States: packaging is the preparation for the shipment and sale of products; The United Kingdom is: packaging is the artistic, scientific and technical preparation for the transport and sale of goods; Canada considers packaging to be a tool for keeping products in the hands of customers or consumers and maintaining the integrity of their products; our packaging is defined as: In order to protect products in the circulation process, convenient storage and transportation, promote the sale of auxiliary goods, such as the general name. Today, people have a fuller understanding of packaging, giving it a broader meaning. From the point of view of system theor y, the purpose, requirements, constituent elements, function and practical operation of packaging are linked, and a complete packaging concept is formed.