Inspired　by　human　meniscus,　a　superhydrophobic　inner　pipeline　coating　with　has　been　developed　to　mitigate　the　erosion　and　corrosion　damages　to　gas　transportation　pipeline.　The　erosion-resistant　coating,　consisting　of　modified　TiO2　nanoparticles　(NPs),　multi-walled　carbon　nanotube　(CNTs),　and　epoxy　resin　(EP),　is　built　on　a　buffer　layer　made　of　polydimethylsiloxane　(PDMS).　The　optimized　buffer　layer　thickness　(100　mu　m)　was　deter-mined　by　finite　element　simulation　when　mixing　ratio　between　the　curing　agent　and　PDMS　was　1:30.　The　erosion　resistance　of　the　prepared　coating　was　quantified　by　an　erosion　ring　experiment.　Finally,　erosion　resistance　of　materials　produced　by　different　filler　types　(fibrous　and　spherical)　were　compared.　The　erosion　resistance　of　the　material　is　significantly　improved　by　the　tensile　force　of　the　fiber　filler,　similar　to　the　steel　in　reinforced　concrete.　The　result　shows　that　the　buffer-structure　coating　can　reduce　the　magnitude　of　erosion　rate　significantly.　Compared　to　the　coating　with　no　buffer　structure,　the　maximum　reduction　of　erosion　rate　is　up　to　37.55　%.　In　addition,　the　water　contact　angle　(CA)　of　the　sample　could　maintained　over　150　after　various　mechanical　shocks,　such　as　350　times　of　90　bending　test,　1500　times　of　sand　impact　test,　and　4H　pencil　hardness　test.　Compared　with　the　316L　steel　sample,　the　corrosion　potential　of　the　coating　in　3.5　wt%　NaCl　solution　increased　from-0.18　V　to　0.04　V,　making　it　potentially　applicable　for　the　corrosive　environment　of　submarine　pipelines.