Conductive　hydrogels　have　attracted　the　attention　of　many　researchers　in　the　past　decade.　However,　the　applications　of　conductive　hydrogels　were　greatly　limited　due　to　their　weak　mechanical　properties.　In　this　work,　the　PVA/　PAM　double　network　conductive　gels　were　prepared　by　free　radical　polymerization　and　then　soaked　in　different　kinds　of　salt　(NaCl,　Na2SO4,　and　Na3Cit)　aqueous　solution.　The　relationship　between　their　performance　and　salts　was　studied.　Among　the　three　salts,　only　Na3Cit　can　significantly　improve　the　performance　of　the　PVA/PAM　composite　gel　and　the　obtained　hydrogel　remains　stable　at　room　temperature.　The　salting-　out　of　Na3Cit　induced　the　formation　of　physically　cross-　linked　PVA　network　in　the　composite　gel,　resulting　in　a　strong　and　tough　PVA/PAM-　Na3Cit　double　network　hydrogel.　The　PVA/PAM-　Na3Cit　hybrid　double-　network　hydrogel　with　chemically　and　physically　crosslinked　network　exhibits　a　high　tensile　strength　(1.57　MPa)　and　toughness　(10.52　MJ/m3).　In　addition,　the　PVA/PAM-　Na3Cit　double　network　hydrogel　has　good　sensing　properties.　©　2023　Sichuan　University.　All　rights　reserved.