Core-shell　fluorinated　acrylate　copolymers　emulsion　was　thus　synthesized　via　the　core-shell　emulsion　polymerization　with　the　fluorinated　monomers　and　acrylic　monomers　as　the　main　raw　materials　and　its　properties　were　studied.　PFMA,　the　fluorinated　acrylate　monomers,　was　synthesized　by　the　esterification　of　perfluorooctanoyl　chloride　(PFOC)　and　hydroxypropyl　methacrylate　(HPMA).　Then　the　core-shell　fluorinated　acrylate　copolymers　emulsion　with　a　poly(MMA/BA/St)　core　and　a　poly(PFMA/MMA/BA)　shell　was　synthesized　via　a　starved　semi-continuous　core-shell　emulsion　polymerization　method　by　using　KPS　and　sodium　bicarbonate　as　the　initiator/buffer　system　and　SDS/Twain　80　as　the　commixture　emulsifier.　Lastly,　the　synthesized　copolymers　was　applied　as　textile　finishing　agent　for　cotton　textile.　The　results　of　FT-IR　and　NMR　indicated　that　PFMA　had　been　synthesized　as　expected　and　effectively　combined　in　the　emulsion　copolymerization.　The　GPC,　zeta　potential,　TEM　and　DSC　showed　that　the　particles　had　uniform　spherical　core-shell　structure　with　a　diameter　of　65-150　nm,　and　the　distribution　and　emulsion　stability　was　satisfactory.　As　XPS,　FESEM　and　AFM　shown,　a　hydrophobic　structure　which　was　similar　to　the　structure　of　the　lotus　leaf　were　formed　and　the　surface　hydrophobicity　of　the　films　can　be　improved.　Based　on　the　analysis　of　DSC,　thermal　stabilities　of　the　films　were　enhanced　with　the　increase　of　fluorine　content.　Besides,　FESEM　of　textiles　showed　that　the　surface　of　treated　textiles　were　smooth　and　the　edges　were　clear　and　visible,　indicating　significant　improvement　of　the　performance　on　water　and　oil　repellent.