To　solve　the　problem　of　data　transmission　security　in　the　perception　layer　network,　we　propose　a　multi-level　trusted　clustering　mechanism.　This　mechanism　combines　multi-level　clustering,　identity　authentication　and　trusted　computing,　we　also　propose　a　two-way　transmission　authentication　method　based　on　symmetric　cryptography.　Finally,　platform　integrity　is　authenticated.　The　authentication　scheme　improves　the　security　of　intra-cluster　communication　and　enables　the　network　to　form　a　secured　and　trusted　cluster　structure.　©　2022　IEEE.