Wire-arc　sprayed　Al-based　composite　coatings　attracted　great　attentions　due　to　their　prospective　application　in　offshore　engineering.　However,　the　difficulty　in　regulating　ceramic　reinforcements　limited　the　performance　of　these　coatings.　In　this　work,　we　proposed　a　novel　rotary　swaging　(RS)　process　to　improve　the　deposition　of　ceramic　particles,　thus　the　Al/Al2O3　composite　coating　was　prepared　and　evaluated　in　comparison　with　the　traditional　coating　by　spraying　the　drawing　cored　wires.　As　expected,　the　RS　process　promotes　the　melt　of　Al2O3　particles,　leading　to　a　significant　increase　of　their　deposition　fraction　with　the　simultaneous　improvement　in　coating　compactness　and　the　interfacial　bonding　of　heterogeneous　splats.　The　sufficient　melt　of　Al2O3　particles　is　attributed　to　the　enhanced　cohesion　strength　of　filled　powders　to　bear　the　vibration　of　arc　force　and　facilitate　heat　transport.　The　explored　composite　coating　displays　a　superior　corrosion　resistance　in　3.5　wt%　NaCl　aqueous　solution,　due　to　the　reduced　active　area　on　electrode　surface　and　the　lower　sensitivity　to　pitting.　Benefiting　from　a　dynamic　self-reinforcing　effect,　the　explored　composite　coating　presents　lower　coefficient　of　friction　and　significantly　enhanced　wear　resistance　under　dry　frictional　condition.　The　present　results　demonstrate　a　great　potential　of　the　developed　Al/Al2O3　composite　coating　in　offshore　application　and　provide　an　inspiration　for　future　works　aiming　to　exploit　the　high-performance　metal-matrix　composite　coatings　synthesized　by　low-cost　wire-arc　spraying.　©　2024　Elsevier　B.V.