<p>In this study, micro-/nanocomposite structures with superhydrophobic and superoleophobic properties were constructed on copper substrates using a combined laser-electrodeposition process. The impact of solution temperature, current density, and deposition time on the growth mechanism and morphology of the micro-/nanostructures was examined, and the superhydrophobic and superoleophobic properties were assessed. The results demonstrate that the optimal deposition current density for the primary submicron structure is 2.5&#xa0;A/dm², with an optimal deposition time of 300&#xa0;s. The optimal deposition current density for the secondary nanostructures is 5&#xa0;A/dm², with an optimal deposition time of 50&#xa0;s. Under these parameters, the contact angle of water is ≥ 155° ± 2° with a rolling angle ≤ 3°; the contact angle of oil is ≤ 153° ± 2° with a rolling angle ≤ 8°. Finally, the impact of surface morphology on superhydrophobic properties is further elucidated. The findings of this study provide valuable insights that enhance our understanding of the relationship between micro-/nanostructures and their wettability performance.</p> Graphical Abstract <p></p>