Superior　flame　retardancy　and　excellent　smoke　suppression　are　two　significant　issues　in　thermoplastics,　especially　for　thermoplastic　polyurethane　(TPU)　with　extensive　application　in　industrial　fields.　It　is　of　great　significance,　but　hardly　achievable,　to　simultaneously　impart　these　properties　to　TPU.　Herein,　we　reported　the　titanium　carbide　and　coupling　agent　functionalized　the　silicon-wrapped　ammonium　polyphosphate　(NSiAPP@Ti3C2Tx)　via　hydrogen-bonding　interaction　and　microencapsulation,　which　were　then　adopted　to　enhance　the　fire　safety　of　TPU.　The　as-prepared　TPU/9.0NSiAPP@1.0Ti3C2Tx　composite　showed　the　V-0　rating　in　the　UL-94　testing　and　its　LOI　value　was　increased　to　27.6%.　Besides,　the　cone　calorimetry　results　indicated　that　the　peak　of　heat　release　rate,　total　smoke　release,　total　carbon　monoxide　yield　and　total　carbon　dioxide　yield　of　the　TPU/9.0NSiAPP@1.0Ti3C2Tx　were　significantly　decreased　by　78.1%,　72.6%,　53.7%　and　67.5%,　respectively,　as　compared　to　those　of　pure　TPU.　The　outstanding　charring　effect　and　excellent　barrier　function　together　with　the　prominent　terminating　action　of　the　NSiAPP@Ti3C2Tx　hybrid　caused　the　remarkable　enhancement　of　the　fire　resistance　for　TPU　composites.　This　work　offers　a　promising　strategy　for　endowing　TPU　composite　with　high　flame　retardancy　and　superior　smoke　suppression.　©　2022　Elsevier　Ltd