The hand-held fiber laser welding machine changes the traditional welding method, using a high-intensity laser beam as the heat source for welding, and is equipped with a hand-held welding head to replace the previous fixed optical path. It has the advantages of simple operation, beautiful welding seam, fast welding speed and less consumables. It is widely used in aviation, aerospace, sporting goods, jewelry, golf head, medical equipment, aluminum denture, instrumentation, electronics, machining, automotive and other industries, especially for gold and silver jewelry fill the hole, point weld lines, mosaic pieces and claw foot unit area.