Membrane　distillation　technology,　utilized　for　treating　hypersaline　wastewater　from　seawater　desalination,　often　encounters　challenges　related　to　inorganic　scaling,　adversely　affecting　membrane　performance.　Herein,　we　introduce　a　innovative　approach　employing　a　sacrificial　layer　on　the　surface　of　Thin　Film　Composite　(TFC)　membranes　to　concurrently　enhance　inorganic　scaling　resistance　and　facilitate　membrane　reusability.　The　sacrificial　layer　(Fe3+-TA)　consisted　of　tannic　acid　(TA)　complexed　with　iron　ions　(Fe3+)　and　could　be　removed　and　regenerated　in　situ.　The　results　demonstrated　that　the　Fe3+-TA　layer　significantly　improved　the　membrane＇s　surface　smoothness　and　densification,　maintaining　superior　anti-scaling　performance.　The　modified　membrane　exhibited　remarkable　durability,　sustaining　six　reuse　cycles　with　a　flux　recovery　exceeding　97　%　in　gypsum　scaling　tests.　Furthermore,　the　formation　of　new　complexes　during　gypsum　scaling　tests　confirmed　the　membrane＇s　augmented　scaling　retardation　capabilities.　Thus,　integrating　of　a　sacrificial　layer　into　TFC　membranes　presents　a　promising　strategy　for　advancing　membrane　distillation　processes　in　hypersaline　wastewater　treatment.　©　2024　Elsevier　B.V.