Polytetrafluoroethylene　(PTFE)　membrane,　with　high　resistances　to　acid,　alkali　and　other　chemical　corrosion,　is　the　ideal　filter　material　in　water　treatment,　which　can　be　used　in　a　variety　of　harsh　environment.　However,　the　hydrophobictity　of　PTFE　membrane　limits　its　wide　application　in　water　treatment.　Thus,　the　hydrophilic　modification　of　PTFE　membrane　attracts　much　attention.　In　this　work,　the　microporous　PTFE　membrane　was　treated　by　a　novel　strategy　for　enhancing　its　hydrophilicity.　The　pristine　microporous　PTFE　membrane　was　modified　by　assembly　of　fluorocarbon　surfactant.　The　structure　and　morphology　of　the　membranes　were　characterized　by　attenuated　Fourier　Transform　Infrared　spectroscopy　(ATR-FTIR)　and　scanning　electron　microscope　(SEM).　The　variation　of　wettability　was　evaluated　by　the　change　of　water　contact　angle　(WCA).　And　the　influences　of　the　concentration　of　fluorocarbon　surfactant　and　modification　time　on　PTFE　WCA　were　also　investigated　as　well.　The　WCA　of　the　pristine　PTFE　membrane　is　156°.　After　modified　by　5.0　g/L　of　fluorocarbon　surfactants,　the　WCA　reduced　to　4.3°,　indicating　that　the　hydrophobic　PTFE　membrane　was　transformed　into　a　hydrophilic　one.　FTIR　and　SEM　results　indicated　that　there　were　hydrophilic　groups,　such　as　carbonyl　(-C=O)　and　hydroxyl　(-OH)　existing　on　the　surface　of　PTFE　membrane　after　modification.　And　WCA　of　the　hydrophilic　membrane　showed　a　slight　increase　from　4.3°to　8°　after　a　week,　indicating　that　the　hydrophilic　PTFE　membrane　exhibiting　a　persistent　durability.　©　2017　Trans　Tech　Publications,　Switzerland.