All-solid-state　lithium　metal　batteries　(LMBs)　are　regarded　as　one　of　the　most　viable　energy　storage　devices　and　their　comprehensive　properties　are　mainly　controlled　by　solid　electrolytes　and　interface　compatibility.　This　work　proposes　an　advanced　poly(vinylidene　fluoride-hexafluoropropylene)　based　gel　polymer　electrolyte　(AP-GPEs)　via　functional　superposition　strategy,　which　involves　incorporating　butyl　acrylate　and　polyethylene　glycol　diacrylate　as　elastic　optimization　framework,　triethyl　phosphate　and　fluoroethylene　carbonate　as　flameproof　liquid　plasticizers,　and　Li-7　La-3　Zr-2　O-12　nanowires　(LLZO-w)　as　ion-conductive　fillers,　endowing　the　designed　AP-GPEs/LLZO-w　membrane　with　high　mechanical　strength,　excellent　flexibility,　low　flammability,　low　activation　energy　(0.137　eV),　and　improved　ionic　conductivity　(0.42　x　10(-3)　S　cm(-1)　at　20　degrees　C)　due　to　continuous　ionic　transport　pathways.　Additionally,　the　AP-GPEs/LLZO-w　membrane　shows　good　safety　and　chemical/electrochemical　compatibility　with　the　lithium　anode,　owing　to　the　synergistic　effect　of　LLZO-w　filler,　flexible　frameworks,　and　flame　retardants.　Consequently,　the　LiFePO4　/Li　batteries　assembled　with　AP-GPEs/LLZO-w　electrolyte　exhibit　enhanced　cycling　performance　(87.3%　capacity　retention　after　600　cycles　at　1　C)　and　notable　high-rate　capacity　(93.3　mAh　g(-1)　at　5　C).　This　work　proposes　a　novel　functional　superposition　strategy　for　the　synthesis　of　high-performance　comprehensive　GPEs　for　LMBs.