Functional　membranes　generally　wear　out　when　applying　in　harsh　conditions　such　as　a　strong　acidic　environment.　In　this　work,　high　acid-resistance,　long-lasting,　and　low-cost　functional　membranes　are　prepared　from　engineered　hydrogen-bonding　and　pH-responsive　supramolecular　nanoparticle　materials.　As　a　proof　of　concept,　the　prepared　membranes　for　dehydration　of　alcohols　are　utilized.　The　synthesized　membranes　have　achieved　a　separation　factor　of　3000　when　changing　the　feed　solution　pH　from　7　to　1.　No　previous　reports　have　demonstrated　such　unprecedentedly　high-record　separation　performance　(pervaporation　separation　index　is　around　1.1　x　10(7)　g　m(-2)　h(-1)).　More　importantly,　the　engineered　smart　membrane　possesses　fast　self-repairing　ability　(48　h)　that　is　inherited　from　the　dynamic　hydrogen　bonds　between　the　hydroxyl　groups　of　polyacrylic　acid　and　carbonyl　groups　of　polyvinylpyrrolidone.　To　this　end,　the　designed　supramolecular　materials　offer　the　membrane　community　a　new　material　type　for　preparing　high　acid　resistance　and　long-lasting　membranes　for　harsh　environmental　cleaning　applications.