Hydrogel　electrolytes　have　garnered　extensive　attention　in　zinc　ion　batteries　due　to　their　excellent　flexibility　and　good　safety.　However,　their　limited　mechanical　properties,　low　ionic　conductivity,　and　poor　Zn2+　transference　number　pose　significant　challenges　for　developing　high-performance　zinc　ion　batteries.　Herein,　this　work　constructs　a　3D　supramolecular　network　capable　of　locking　anions　and　active　water　molecules　through　the　abundant　hydrogen　bonding　interactions　between　aramid　nanofibers,　polyvinyl　alcohol,　and　anions.　This　network　synergistically　enhances　the　mechanical　properties　(with　a　mechanical　strength　of　0.88　MPa　and　a　toughness　of　3.28　MJ　m(-3)),　ionic　conductivity　(4.22　S　m(-1)),　and　Zn2+　transference　number　(0.78).　As　a　result,　the　supramolecular　composite　hydrogel　electrolyte　can　effectively　inhibit　dendrite　growth　and　side　reactions,　facilitate　interface　regulation,　and　enable　uniform　zinc　deposition.　The　Zn　anode　exhibits　a　cycle　life　of　1500　h　at　5　mA　cm(-2)　and　5　mAh　cm(-2),　with　an　average　coulombic　efficiency　of　99.1%　over　600　cycles.　Additionally,　the　Zn||polyaniline　full　cell　maintains　a　high　capacity　retention　of　78%　after　9100　cycles　at　1　A　g(-1).　The　assembled　pouch　cells　demonstrate　good　flexibility,　deformability,　and　compression　resistance.　This　work　provides　valuable　insights　into　the　design　of　high-performance　hydrogel　electrolytes　for　zinc　ion　batteries.