Several special laser processing methods for regulating the mechanical properties of materials are introduced. The so-called laser texturing is to engrave the specify morphology and roughness on the surface of rolls using high-power-density laser. This method can not only improve the performance and function of the rolls, but also improve the performance of the rolled metal sheet by the cold rolling process. Using the laser strengthening method of coating interface, the coating and its interface structure between the coating and the substrate can be optimized through influencing the atomic deposition process while plating. The laser-assisted forming method is using the laser thermal effect to induce the elastic internal stress to do plastic work for forming the parts or improving accuracy of their shape.