Electric hoists are mainly widely used in different industries, and their excellent performance is highly favored by consumers. Electric hoist is a light and small lifting equipment with the characteristics of small volume, light self weight, simple operation, and convenient use. It is used in industrial and mining enterprises, storage docks, and other places. The hook of the electric chain hoist is cast and then subjected to overheating treatment. During the casting process of the hook, the internal metal structure is refined and the metal fibers are arranged. After being overheated, the internal stress is effectively eliminated and the mechanical energy of the metal is improved, making the internal structure of the metal more compact. The method of welding repair only involves partial melting, fusion, and solidification, which affects the use and mechanical performance of the electric hoist hook.