At present, many types of work in the production line of many factories are gradually being replaced by machines. Such technology as welding is being taken over by the welding manipulator. Due to the high requirements of welding for angle and accuracy, the welding manipulator has its own advantages in this respect, and welding manipulator is never tired and can work all the time, so to some extent, it can extend the working time and bring more benefits to the factory. This article will introduce what is welding manipulator.