<p>Femtosecond laser was utilized to induce periodic surface structures on 7075 aluminum alloy to investigate their effects on the alloy's hydrophobicity and tribological properties. The surface morphology, wettability, and tribological performance of the material before and after femtosecond laser processing were systematically studied. The results indicate that femtosecond laser-induced periodic surface structures can reduce the contact area between water droplets and the material and increase the adsorption content of organic hydrogen-containing substances on the surface, transforming the 7075 aluminum alloy surface from hydrophilic to hydrophobic. After aging the processed samples for two months, the static water contact angle (WCA) reached 152°, demonstrating superhydrophobic characteristics. The periodic surface structures can collect wear debris through their textured features and reduce adhesive wear by decreasing the contact area with the counterface. Compared to untreated sample, the femtosecond laser-induced surface significantly reduces the coefficient of friction (COF) and wear rate. Under dry sliding conditions, the reductions can reach up to 24% and 37%, respectively, while under lubricated conditions, the reductions can reach up to 33% and 55%, respectively. Femtosecond laser-induced periodic surface structures provide an effective strategy for simultaneously enhancing the hydrophobicity and wear resistance of 7075 aluminum alloy surface, showing broad application potential in fields such as aerospace and shipbuilding.</p>