The　gradual　permeation　of　corrosive　mediums,　external　mechanical　damage,　and　ultraviolet　(UV)　radiation-induced　aging　are　critical　factors　contributing　to　the　rapid　deterioration　of　the　anticorrosive　functionality　of　polymer　coatings.　In　this　study,　a　two-dimensional　anticorrosive　enhancement　material,　fluorinated　graphene　loaded　with　zinc　oxide　nanoparticles　(FG@ZnO),　was　synthesized　via　the　heterogeneous　nucleation　growth　method.　This　material　was　then　embedded　into　a　polyurethane　coating　to　modify　the　coating　matrix,　and　a　biomimetic　lotus　leaf-like　fine　micro-nanostructure　was　fabricated　on　the　coating　surface　employing　a　templating　approach.　Through　this　internal-external　dual　modification　strategy,　an　FG@ZnO/SPU　composite　coating　with　multiple　protective　functions　was　constructed　to　offer　enduring　corrosion　protection　to　the　steel　substrate.　Experimental　findings　reveal　that　the　composite　coating　exhibits　excellent　superhydrophobicity,　with　a　water　contact　angle　as　high　as　152°.　Even　after　immersion　in　a　3.5　%　NaCl　solution　for　80　days,　the　composite　coating　maintains　an　exceptionally　high　low-frequency　impedance　modulus　of　1.332　×　1010　Ω　cm2,　demonstrating　exceptional　long-term　anticorrosive　performance.　In　instances　of　coating　damage,　FG@ZnO　markedly　relieves　the　corrosion　reaction　between　the　corrosive　medium　and　the　steel　substrate　while　suppressing　galvanic　corrosion.　Furthermore,　the　composite　coating　demonstrates　effective　resistance　against　UV　radiation-induced　aging　effects.　These　exceptional　multiple　protective　properties　are　attributed　to　the　internal-external　dual　modification　effect　of　embedded　FG@ZnO　and　biomimetic　lotus　leaf　hydrophobic　modification.　This　study　provides　an　attractive　strategy　for　preparing　polymer　composite　coatings　with　multiple　protective　functions　for　enduring　corrosion　protection　of　metals.　©　2024　Elsevier　B.V.