Superwetting　materials　for　emulsion　separation　have　attracted　considerable　attention　in　recent　years　as　a　way　to　combat　increasing　environmental　pollution.　However,　there　are　still　major　challenges　regarding　the　durability　of　superwetting　materials　and　separating　emulsions　with　high　viscosities　and/or　complex　compositions.　Metal　rubber　(MR)　with　a　robust　three-dimensional　(3D)　porous　structure　has　received　significant　attention　for　solving　such　challenges.　In　this　study,　carbon　nanofiber-reinforced　polydimethylsiloxane　(CNF-PDMS)　is　subtly　deposited　into　MR　pores　via　a　vacuum　filtration　method　to　form　an　extremely　superhydrophobic　and　superoleophilic　MR/CNF-PDMS　composite　with　a　unique　embedded　network　structure.　This　material　can　efficiently　separate　water-in-oil　(gasoline,　diesel,　engine　oil,　and　lubricating　oil)　emulsions　with　high　viscosities　and　complex　compositions　from　mechanical　systems.　Additionally,　the　corrosion　resistance　of　MR　is　significantly　improved　through　embedding　CNF-PDMS　particles,　and　the　MR/CNF-PDMS　composite　remains　superhydrophobic　after　being　soaked　in　acid,　alkali,　and　salt　solutions　for　15　days.　Most　importantly,　the　excellent　mechanical　properties　of　MR　can　support　the　CNF　network　structure　of　the　CNF-PDMS　such　that　the　MR/CNF-PDMS　composite　can　withstand　high　impact　and　wear　forces.　In　particular,　discretely　or　partially　superhydrophobic　MR/CNF-PDMS　obtained　after　wear　treatment　can　still　perform　efficient　emulsion　separation.　This　work　provides　a　basis　for　fabricating　extremely　robust　superhydrophobic　materials　with　unique　structures　for　emulsion　separation,　showing　considerable　potential　for　large-scale　practical　applications.　©　2020　American　Chemical　Society.