The mini handheld fiber laser welding machine is researched to realize the increasing number of applications that require higher welding precision, lower heat input, and lower electrical energy consumption. The machine uses the latest generation of the fiber laser module, which can perfectly replace traditional arc welding, TIG welding, and MIG welding. The manual laser welding machine with the high-energy fiber laser beams into the optical fiber can be used for remote laser welding. Such as cabinets, stainless steel, aluminum, kitchen, stairs, doors, windows guardrail, and other industry’s complex irregular welding processes. The handheld laser welder couples WOBBLE handheld laser head overcomes the limitation of the worktable’s stroke space, enabling it easy for spot welding, butt welding, overlap welding, vertical welding, flat fillet welding, and co welding.