To　enhance　the　stability　of　the　Trusted　Platform,　by　analyzing　the　TPM　security　chip　and　the　credible　chain,　this　paper　proposed　a　failure　recovery　for　Trusted　Platform　based　on　the　USB-Key.　This　recovery　mechanism　is　pre-stored　the　corresponding　restore　data　in　the　USB-Key.　If　Trusted　Platform　failure,　the　Trusted　Platform　will　call　the　reading　data　module　to　read　the　USB-Key＇s　restore　data.　In　the　process　of　Trusted　Platform　reading　the　recovery　data,　USB-Key　needs　to　verify　the　legitimacy　of　the　reading　module.　By　analyzing　this　mechanism,　the　time　cost　of　Trusted　Platform　failure　recovery,　which　used　this　mechanism,　is　significantly　shorter　than　the　normal　platform　recovery.　This　recovery　mechanism　plays　a　better　role　in　Trusted　Platform＇s　promotion.