Conductive　hydrogels　have　attracted　great　interest　in　the　fabrication　of　flexible　strain　sensors.　However,　hydrogel-based　strain　sensors　still　have　unresolved　challenges,　such　as　low　mechanical　strength,　lack　of　frost　resistance,　easy　dehydration,　and　non-recyclability,　which　have　largely　hindered　their　application.　Herein,　the　ion-conductive　starch/PVA/EG/TA/CaCl2　(SPETC)　composite　organohydrogel　was　prepared　by　the　cyclic　freezing-thawing　method　using　starch　and　PVA　as　the　gel　backbone,　water　and　ethylene　glycol　(EG)　as　the　binary　solvent,　and　Ca2+　and　Cl-　as　the　conducting　ions　carriers.　The　SPETC　organohydrogel　exhibited　high　mechanical　properties　and　showed　excellent　environmental　stability　and　frost　resistance.　SPETC　organohydrogel　was　fully　physically　cross-linked　by　non-covalent　interactions　such　as　hydrogen　bonding　and　ligand　bonding,　and　these　reversible　interactions　can　give　the　gel　good　recyclability.　Moreover,　benefiting　from　the　superior　mechanical　response,　SPETC　organohydrogel　can　be　assembled　as　a　flexible　wearable　strain　sensor　for　real-life　motion　monitoring.　©　2022　Elsevier　Ltd