Five-axis harmonic platform welding is an advanced welding technology that uses a five-axis linkage platform in conjunction with a harmonic drive mechanism to achieve welding operations. Five-axis linkage platform with X, Y, Z three linear axes and two axis A, R. Through the coordinated movement of these five axes, the welding head can achieve welding at any Angle in space, enabling precise welding of complex-shaped workpieces and avoiding problems such as porosity and slag inclusion in the weld seam. The harmonic drive mechanism has the advantages of large transmission ratio, high precision and small volume, which can ensure the accuracy and stability of the platform movement. The scanning speed, solder joint frequency is high, the welding efficiency than traditional servo drive increased substantially. Meanwhile, its repeat positioning accuracy can reach the micrometer level, which can meet the requirements of high-precision welding. It is widely used in industries such as electronics, electrical appliances, digital products, aerospace, etc., and can be used for welding components such as battery tabs, electronic control boxes, and titanium alloy wing frames.