In　recent　years,　thermoplastic　polyurethane　elastomer　has　shown　great　application　prospects　in　the　fields　of　polymer　film　due　to　its　outstanding　tensile　properties,　high　elasticity,　wear　resistance,　oil　resistance,　low　temperature　resistance,　wide　range　of　hardness,　and　other　properties.　However,　its　flammable　properties　greatly　limit　its　application　in　the　field　of　polymer　film.　The　self-made　GO　was　used　as　a　carbon　source,　phenylboronic　acid　as　an　acid　source,　ammonium　polyphosphate　(APP)　as　an　acid　and　gas　source,　and　intumescent　flame　retardant　(IFR)　was　compounded.　The　IFR　was　introduced　into　thermoplastic　polyurethane　(TPU)　to　prepare　a　series　of　IFR/TPU　composite　films　with　different　formulations.　The　results　show　that　PA　and　GO　can　make　up　for　the　loss　of　mechanical　properties　caused　by　the　addition　of　APP　and　improve　the　thermal　stability　of　the　composite　film,　and　the　IFR　flame　retardant　composed　of　the　two　and　APP　can　effectively　improve　the　flame　retardancy　of　the　composite　film.　When　the　additions　of　APP,　PA,　and　GO　were　10,　3,　and　0.75%,　respectively,　the　LOI　value　of　the　IFR/TPU　composite　material　reached　29.5,　the　flame-retardant　grade　reached　V-0,　and　its　peak　heat　release　rate,　total　heat　release,　peak　smoke　production　rate,　and　total　smoke　release　were　86.0,　64.9,　70.5,　and　21.7%,　greatly　lower　than　pure　TPU,　respectively.　The　flame　retardancy　of　the　spacer　composite　membrane　constructed　from　Ti-7　was　significantly　improved,　and　the　burn-through　time　of　the　single-layer　film　sample　was　increased　by　2.22　times,　and　the　double-layer　film　sample　was　increased　by　2.63　times.