To　achieve　smart　and　personalized　medicine,　the　development　of　hydrogel　dressings　with　sensing　proper-ties　and　biotherapeutic　properties　that　can　act　as　a　sensor　to　monitor　of　human　health　in　real-time　while　speeding　up　wound　healing　face　great　challenge.　In　the　present　study,　a　biocompatible　dual-network　composite　hydrogel　(DNCGel)　sensor　was　obtained　via　a　simple　process.　The　dual　network　hydrogel　is　constructed　by　the　interpenetration　of　a　flexible　network　formed　of　poly(vinyl　alcohol)　(PVA)　physical　cross-linked　by　repeated　freeze-thawing　and　a　rigid　network　of　iron-chelated　xanthan　gum　(XG)　impreg-nated　with　Fe3+　interpenetration.　The　pure　PVA/XG　hydrogels　were　chelated　with　ferric　ions　by　immer-sion　to　improve　the　gel　strength　(compressive　modulus　and　tensile　modulus　can　reach　up　to　0.62　MPa　and　0.079　MPa,　respectively),　conductivity　(conductivity　values　ranging　from　9　x　10　-4　S/cm　to　1　x　10　-3　S/cm)　and　bacterial　inhibition　properties　(up　to　98.56%).　Subsequently,　the　effects　of　the　ratio　of　PVA　and　XG　and　the　immersion　time　of　Fe3+　on　the　hydrogels　were　investigated,　and　DNGel3　was　given　the　most　priority　on　a　comprehensive　consideration.　It　was　demonstrated　that　the　DNCGel　exhibit　good　biocom-patibility　in　vitro　,　effectively　facilitate　wound　healing　in　vivo　(up　to　97.8%　healing　rate)　under　electrical　stimulation,　and　monitors　human　movement　in　real　time.　This　work　provides　a　novel　avenue　to　explore　multifunctional　intelligent　hydrogels　that　hold　great　promise　in　biomedical　fields　such　as　smart　wound　dressings　and　flexible　wearable　sensors.(c)　2023　Published　by　Elsevier　B.V.　on　behalf　of　Chinese　Chemical　Society　and　Institute　of　Materia　Medica,　Chinese　Academy　of　Medical　Sciences.