The industrial robot is called "the pearl at the top of the crown of manufacturing industry", as an essential part of the system and model of intelligent manufacturing. Its research and development, manufacturing and application are important symbols to measure a country's scientific and technological innovation and high-end manufacturing level. And more than 30% of industrial robots are used for welding production. This course concentrates on common terms of welding robots, such as: welding robot body, demonstrator, off-line programming, etc. The students will have a more comprehensive understanding of welding robots so as to build a solid foundation for learning the basics of welding robots and performing basic welding robot operations in the future.