This presentation discusses the surface modification of aluminum alloy (AlSi10Mg) achieved using a nanosecond pulse laser, primarily aimed at enhancing corrosion resistance and adhesion strength. A systematic analysis of the microstructure, mechanical properties, and corrosion/adhesion performance was conducted to achieve favorable surface conditions for the automotive and aerospace industries. The results showed that various laser treatment conditions influenced the formation of remelted and oxidized layers, leading to variations in the shear strength of the adhesive joint. Higher fluence levels above 6.8 J/cm² combined with pulse overlap above 94% resulted in a thick oxidized layer with increased surface roughness, while lower fluence with lower pulse overlap produced a thick remelted layer. Additionally, the combination of different laser parameters enabled the formation of multi-layered oxidation on the surface, yielding unique properties in surface roughness, composition, shear strength, and corrosion resistance. The characteristics of the different oxidation layers were thoroughly investigated to understand the performance of the combined layer structure. In general, the laser-treated surface exhibited higher shear strength by shifting the adhesion failure mode from adhesive to cohesive failure. The characteristics of the adhesive joint before and after exposure to a corrosive environment demonstrated the corrosion resistance performance of the remelted layer, as well as single and multi-layered oxidation structures. Overall, the results highlight the promising potential of surface modification of aluminum alloy (AlSi10Mg) via nanosecond laser treatment for applications in highly corrosive environments.