Lithography-based　techniques　for　cross-scale　nanopore　array　fabrication　are　expensive,　and　the　design　of　nanoporous　structures　relative　to　wettability　or　lubricity　is　intricate.　This　study　presents　a　low-cost　strategy　integrating　the　anodization　and　pore-widening　processes　to　successfully　fabricate　anodic　aluminum　oxide　(AAO)　nanoporous　structures　with　pore　diameters　ranging　from　40　to　330 nm　and　interpore　distances　ranging　from　60　to　335 nm.　This　study　reveals　the　synergistic　regulation　mechanism　of　pore　characteristics　on　surface　wettability　and　lubricity.　Results　showed　that　both　pore　diameter　and　interpore　distance　increase　with　applied　voltage,　and　a　minimum　pore　diameter　of　40 nm　achieves　a　low　voltage　(i.e.,　40 V)　and　short　anodization　time.　The　pore-widening　process　significantly　enhances　pore　uniformity.　The　AAO　surface　exhibits　excellent　lubricating　properties　with　a　minimum　coefficient　of　friction　of　0.05　after　pore　widening.　In　addition,　the　wettability　of　AAO　can　be　precisely　controlled　by　adjusting　pore　diameter　and　porosity.　A　small　pore　diameter　of　40 nm　exhibits　hydrophobicity　(contact　angle　of　approximately　100°).　The　pore-widening　process　helps　enhance　the　hydrophobicity　of　the　AAO　surface,　where　an　appropriate　pore　diameter　of　100 nm　exhibits　near　superhydrophobicity　(contact　angle　of　approximately　141°).　However,　a　large　pore　diameter　of　330 nm　exhibits　superhydrophilicity　(contact　angle　of　approximately　4°).　This　study　provides　valuable　insights　into　understanding　the　interaction　between　the　structural　characteristics　and　the　surface　properties　of　AAO,　contributing　to　the　development　of　high-performance　nanopore　array　templates.　©　The　Author(s)　2025.