The topic of the final work is laser metal processing. The introductory part explains what a laser is and what that abbreviation means, and what all laser applications exist. The history of the laser itself is further explained, where the scientist Theodore Maiman, who was the first inventor of the laser, is highlighted. The structure of the laser consists of a laser pump, laser material and reflective mirrors. We know different types of lasers, which, divided according to the aggregate state of the laser material, are the most important: gas lasers, solid lasers, and liquid lasers. Each division has its own subdivisions. For example, for gas lasers there are: CO2 lasers, Co lasers, Cu lasers, argon lasers, He-Ne lasers, and excimer lasers. Furthermore, the paper explains the application of lasers in material processing, which includes surface treatments, welding, cutting, and engraving and marking. The goal of surface treatments is to change the surface properties of the material for protection, hardening, polishing and other things. Laser welding is one of the most common laser processes. The advantages of this type of welding are extremely precise and solid welds and a fast-processing process. Laser cutting is the most common in industries due to the speed and quality of cutting. All the main characteristics of the CNC laser and its parts are also explained. At the very end, the entire process of the practical part of the work, from drawing using AutoCAD to the final product, is explained.