‍‍　　 A pallet is a medium that transforms static goods into dynamic goods, a loading platform, and a movable platform, or a movable ground. Even if the goods on the ground lose their flexibility, they immediately gain mobility as soon as they are loaded on the pallet, and become flexible mobile goods, because the goods on the pallet are in a ready state for movement at any time. This dynamic loading and unloading method consisting of pallets as basic tools is called pallet work.
　　 Pallet operation can not only significantly improve the loading and unloading effect, but its implementation has changed the form of warehouse building, the structure of ships, the loading and unloading facilities of railways and other modes of transportation, and the management organization. In terms of cargo packaging, it promotes the standardization and modularization of packaging, and even has a significant impact on general production activities other than loading and unloading. As the production equipment becomes more and more sophisticated, the degree of automation is getting higher and higher, the planning of production becomes stronger and the management method is gradually advanced, the work of handling between working procedures and supplying materials and semi-finished products to the production line becomes more and more important. The tray operation is an effective means to quickly improve the handling efficiency and order the material flow process, and it plays a huge role in reducing production costs and improving production efficiency.