The ultrasonic metal welding machine for lithium battery electrode copper and aluminum foil plates is suitable for welding metal products such as copper, aluminum, nickel, and silver. It is widely used in the power industry, electronics industry, energy industry, and petrochemical industry, among others. It enables the welding of dissimilar metals, achieving excellent welding penetration and mixing effects for different types such as copper-aluminum or similar metals like copper-copper. It is applied in battery tabs, automotive wiring harness and terminal welding, copper wire and aluminum terminal, aluminum wire and aluminum terminal, copper wire, aluminum wire, braided wire and copper terminal welding, as well as copper and aluminum sheet welding. It saves cable and terminal materials, avoids consumables such as solder, flux, bending, and brass materials, achieving economic benefits. With short welding times and easy automation integration, it effectively improves product quality. It reduces labor costs, shortens the development cycle for new customer products, and features a welding speed of no more than 0.5 seconds. The device is compact, portable, low-maintenance, and highly adaptable, making it the preferred choice for automated assembly lines.