The arc welding equipment belongs to the product with large quantity and wide range, the specification is complete and gradually approaching the international level, the high efficiency, the energy saving, the province material, the consumption reduction product market share will further expand. It is necessary to adjust product structure and upgrade products in accordance with market requirements. It is advisable to develop inverter welding power source and automatic and semi-automatic welding machine, especially the high-efficiency and energy-saving carbon dioxide welding machine.