The　production　of　freshwater　by　desalination　has　great　significance.　Membrane　distillation　(MD)　is　considered　as　a　promising　technique　for　desalination.　As　a　popular　candidate　for　MD　desalination,　FAS　(fluoroalkylsilane)-modified　ceramic　membrane　suffers　from　insufficient　stability,　such　as　membrane　wetting　and　decline　of　salt　rejection　during　long-term　operation,　because　of　the　degradation　of　hydrophobicity.　In　the　present　work,　a　novel　strategy　is　proposed　to　enhance　the　long-term　desalination　stability　of　FAS-modified　cordierite　ceramic　mem-branes　by　constructing　a　porous　SiO2@PDMS　(polydimethylsiloxane)　protective　layer　on　their　tops　to　obtain　a　robust　hydrophobic　property.　The　results　show　that　such　a　layer　can　be　successfully　fabricated　by　a　two-step　spraying　method　with　hydrosoluble　NaCl　particles　as　templates.　The　incorporation　of　SiO2　nanoparticles　into　PDMS　generates　a　loose　and　porous　structure　in　the　layer　and　renders　an　enhanced　hydrophobicity.　At　a　SiO2/PDMS　mass　ratio　of　0.30,　the　membranes　exhibit　a　notable　resistance　to　both　mechanical　abrasion　and　chemical　corrosion.　The　dissolution　of　NaCl　templates　leaves　behind　cavities　within　the　layer,　which　prevents　the　SiO2/PDMS　species　from　blocking　the　membrane　pores　and　thereby　helps　to　reduce　the　vapor　transport　resistance.　These　membranes　are　highly　stable　upon　long-term　desalination　(＞　300　h)　and　can　preserve　a　stable　water　flux　of　8.10　kg/m(2)h　and　a　salt　rejection　close　to　100%　under　the　following　conditions:　a　feed　temperature　of　80　?degrees　C,　a　NaCl　concentration　of　3.5　wt%　and　a　feed　flow　rate　of　300　mL/min.　The　SiO2@PDMS　layer　is　responsible　for　the　outstanding　desalination　stability　since　it　prevents　membrane　wetting　by　reducing　the　direct　contact　of　the　reflux　feed　solution　to　the　underlying　cordierite　ceramic　membranes.