In metal forming process, laser machining is plays a foremost role. It is utilized to machine very hard profile with exceptional quality characteristics. Domex 700 steel has high strength and wear resistant. The formability, durability and weldability of the domex steel are better than other grade of steels. Laser beam machining is suitable to machine domex steel with different input constrains such as power of laser, laser speed and standoff distance (SoD). The responses such as rate of metal removal (RMR) and surface roughness (SR) were recorded based on the variation of input factors. The effect and quality characteristics were optimized through taguchi approach. The variance analysis was provided the contribution of each factor with their effect on the response.