The　sewage　treatment　technology　of　oil-water　separation　based　on　superwetting　materials　has　been　widely　employed.　However,　the　stability　of　substrates　was　rarely　considered　in　the　past　few　years,　which　greatly　limited　the　application　of　superwetting　materials　in　engineering　field.　As　a　new　robust,　three-dimensional　porous　material,　metal　rubber　(MR)　has　attracted　significant　attention　for　solving　this　problem.　To　treat　the　wastewater　containing　insoluble　heavy/light　oil　and　soluble　dyes,　herein,　MR　capable　of　degrading　organic　dyes　with　switchable　wettability　and　high　oil-water　separation　efficiency　was　prepared.　Firstly,　the　superhydrophilic　MR　was　obtained　by　anodizing.　Then,　the　wettability　of　MR　surface　was　reversibly　switched　between　superhydrophilic　and　superhydrophobic　via　alternate　immersion　in　stearic　acid　ethanol　solution　and　tetrahydrofuran　(THF)　solvent　to　achieve　switchable　oil-water　separation　of　MR.　The　superwetting　MR　displayed　excellent　abrasion　resistance　and　retained　outstanding　oil-water　separation　performance　after　100　times　of　sandpaper　abrasion.　Besides,　the　surface　of　pure　titanium　MR　was　rich　in　titanium　dioxide　(TiO2)　after　anodic　oxidation,　which　could　effectively　degrade　the　organic　dyes　under　ultraviolet　light.　Therefore,　the　as-prepared　superwetting　MR　possesses　the　ability　to　treat　complex　wastewater　and　have　applications　prospects　in　controllable　oil-water　separation　and　self-cleaning　surfaces.　©　2021　Elsevier　B.V.