To increase the efficiency and accuracy of laser remanufacturing, a method of path planning with combining the characteristics of reverse engineering and laser remanufacturing is presented. The following aspects are contained: obtaining point clouds by scanning the surface of worn workpieces, reconstructing of repair area by reverse engineering, doing the path planning comparing with laser remanufacturing parameter. The calculation of laser processing head axis vector improves the direction and distance control accuracy of laser processing robot.