NOVELTY - A polymer electrolytic material comprises aqueous polyurethane, polysiloxane and conductive salt; the aqueous polyurethane is anionic aqueous polyurethane, cationic aqueous polyurethane, non-ion aqueous polyurethane or mixed polyurethane; the polysiloxane is a high molecule compound having a basic skeleton composed of alternately arranged silicon, oxygen atoms.    USE - The process is useful for preparing polymer electrolytic material (claimed). The polymer electrolytic material is also useful for industrial application.    ADVANTAGE - The electrolytic material has excellent thermal stability, mechanical performance and high ion conductivity, and has broad application prospect in lithium ion cell and electrochemical super capacitor.    DETAILED DESCRIPTION - A polymer electrolytic material comprises aqueous polyurethane, polysiloxane and conductive salt, where polysiloxane accounts for 0.5-50 wt.% of polymer, conductive salt accounts for 5-50 wt.% of polymer; or it is composed of aqueous polyurethane, polysiloxane and electrolytic solution, where polysiloxane accounts for 0.5-50 wt.% of polymer, electrolytic solution liquid absorption rate is 5-260%; the aqueous polyurethane is anionic aqueous polyurethane, cationic aqueous polyurethane, non-ion aqueous polyurethane or mixed polyurethane, where molecular structure of mixed polyurethane has ion or non-ion hydrophilic radical and segment simultaneously; the types of the low polymer polyol for synthesis of aqueous polyurethane comprises polyether type, polyester type or polyolefin type; isocyanate raw material for synthesis of aqueous polyurethane comprises aromatic isocyanate type, aliphatic isocyanate type or alkylic isocyanate type; the polysiloxane is a high molecule compound having a basic skeleton composed of alternately arranged silicon, oxygen atoms; polysiloxane skeleton structure of formula (1); the electrolytic solution is organic electrolytic solution or ion liquid having conductive salt; wherein the organic electrolytic solution is composed of conductive salt and organic solvent; the conductive salt comprises lithium perchlorate, lithium hexafluorophosphate, lithium tetrafluoroborate, lithium trifluoromethanesulfonate (LiTFSI), lithium bis(oxalate) borate, lithium fluoro(oxalate) borate, lithium di(polyfluoroalkoxyl) sulfonyl imide, annular lithium perfluoroalkyldi(sulfonyl) imide, lithium tri(trifluoromethylsulfonyl) methyl lithium; lithium di(polyfluoroalkoxyl) sulfonyl imide of formula (2), annular lithium perfluoroalkyldi(sulfonyl) imide of formula (3); the organic solvent comprises chain or annular organic carbonate with expression being R'OCOOR''; chain or annular ether with expression being R'OR''; chain or annular carboxylate with expression being R'COOR''; ketal; incombustible solvent phosphate; sulfite; the ion liquid comprises halide composite aluminum chloride (AlCl3) type ion liquid, alkyl imidazole, pyridine, quaternary ammonium, quaternary phosphine cation composite fluoroborate ion (BF4-), PF6- and polyfluoro anion ion liquid, organic material ion liquid based on functional group having amide. An INDEPENDENT CLAIM is included for a preparation method of the polymer electrolytic material.