Solar-driven　interfacial　evaporation　(SIE)　is　a　low-energy,　environmentally　friendly　seawater　desalination　technology　with　significant　potential　for　water　resource　regeneration　and　resource　recovery.　However,　challenges　such　as　preventing　salt　crystallization　fouling　and　maintaining　high　evaporation　efficiency　during　prolonged　seawater　exposure　persist.　The　Forward　osmosis　(FO)　process　can　effectively　reject　salts　in　seawater,　creating　favorable　conditions　for　the　continuous　operation　of　SIE.　In　this　study,　an　integrated　FO-SIE　coupling　process　was　developed　using　a　custom-designed　membrane　module.　A　poly(acrylamide-co-isopropyl　acrylamide)　(PAM-NIPAM)　three-dimensional　double-network　hydrogel　evaporator　was　fabricated,　with　phlorizin　(PHL)　as　a　hydrophilic　agent　and　graphene　oxide　(GO)　as　a　photothermal　agent.　The　system　achieved　an　efficient　evaporation　rate　of　3.05　kg　m−2　h−1.　Following　FO　pretreatment　with　sodium　polyacrylate　(PAAS)　as　the　draw　solution　(DS),　the　reverse　solute　flux　(RSF)　remained　consistently　below　0.7　g　m−2　h−1　throughout　the　process,　effectively　preventing　salt　ion　fouling　in　the　evaporator.　During　continuous　seawater　purification,　no　salt　crystallization　was　observed,　and　the　evaporation　rate　sustained　an　average　of　approximately　2.80　kg　m−2　h−1.　In　contrast,　in　the　separate　FO　process,　the　DS　concentration　gradually　diluted　over　time.　By　integrating　the　SIE　process　and　utilizing　the　hydrogel　for　continuous　photothermal　evaporation,　the　DS　concentration　was　maintained,　ensuring　the　sustained　operation　of　FO.　This　study　advances　the　development　of　energy-efficient　membrane　separation　systems　powered　by　solar　energy　and　provides　new　insights　into　practical　seawater　desalination　and　anti-fouling　strategies　in　SIE　applications.　©　2025　Elsevier　B.V.