Robot eight axis linkage laser welding cladding workstation is mainly used for aero-engine's3D precision parts' welding cladding. Adopting ABB4600 robot which can fully satisfy end load laser welding process' stability in running. Fiber integrated design is compact and reliable. Two-axis positioner and six-axis robots can make eight-axis linkage, which canrealize straight line welding, circumferential welding, irregular-shape and space curve's precision welding. In order to solve the problem of repeat accuracy positioning of the workpiece, the system applied laser measuring 3D fitting calibration technology, it has laid a good foundation for stably producing and researching large workpiece.