To　meet　the　demand　for　practical　applications,　it　is　imperative　to　develop　flexible　electromagnetic　inter-ference　(EMI)　shielding　materials　with　fire　safety.　In　this　work,　highly　fire　safe　and　flexible　thermoplastic　polyurethane　(TPU)-based　EMI　shielding　nanocomposites　were　prepared　via　melt　blending　polyphenyl　phosphate　ester　amide　(PPPEA)　with　MXene/carboxylic　multiwalled　carbon　nanotubes　hybrid　(MC),　air-assisted　thermocompression　and　layer-by-layer　stacking.　Combining　PPPEA　with　MC　led　to　peak　of　heat　release　rate,　total　heat　release　and　total　smoke　release　of　TPU　nanocomposite　containing　5.0　wt%　PPPEA　and　2.0　wt%　MC　decreased　by　39.0%,　24.5%　and　23.8%,　respectively.　Furthermore,　the　hierarchical　TPU/5PA/　2.0MC/carbon　fiber　cloth　(CF)　nanocomposite　showed　a　prominent　averaged　EMI　shielding　effectiveness　(SE)　of　35.5　dB　and　a　high　normal　SE　value　of　29.6　dB/mm,　which　were　superior　to　most　previously　reported　results.　Catalytic　carbonization　of　PPPEA　and　multiply　reflected　and　scattered　effect　of　MC　together　with　continuous　conductive　network　of　CF　were　responsible　for　the　improvement　of　these　performances.　&　COPY;　2023　Elsevier　B.V.　All　rights　reserved.