Conductive　elastomers　with　both　softness　and　conductivity　are　widely　used　in　the　field　of　flexible　electronics.　Nonetheless,　conductive　elastomers　typically　exhibit　prominent　problems　such　as　solvent　volatilization　and　leakage,　and　poor　mechanical　and　conductive　properties,　which　limit　their　applications　in　electronic　skin　(e-skin).　In　this　work,　a　liquid-free　conductive　ionogel　(LFCIg)　with　excellent　performance　was　fabricated　by　utilizing　the　innovative　double　network　design　approach　based　on　a　deep　eutectic　solvent　(DES).　The　double-network　LFCIg　is　cross-linked　by　dynamic　non-covalent　bonds,　which　exhibit　excellent　mechanical　properties　(2100%　strain　while　sustaining　a　fracture　strength　of　1.23　MPa)　and　＞90%　self-healing　efficiency,　and　a　superb　electrical　conductivity　of　23.3　mS　m−1　and　3D　printability.　Moreover,　the　conductive　elastomer　based　on　LFCIg　has　been　developed　into　a　stretchable　strain　sensor　that　achieves　accurate　response　recognition,　classification,　and　identification　of　different　robot　gestures.　More　impressively,　an　e-skin　with　tactile　sensing　functions　is　produced　by　in　situ　3D　printing　of　sensor　arrays　on　flexible　electrodes　to　detect　light　weight　objects　and　recognize　the　resulting　spatial　pressure　variations.　Collectively,　the　results　demonstrate　that　the　designed　LFCIg　has　unparalleled　advantages　and　presents　wide　application　potential　in　flexible　robotics,　e-skin　and　physiological　signal　monitoring.　©　2023　The　Royal　Society　of　Chemistry.