Security　of　sensing　network　is　the　core　of　the　security　of　the　Internet　of　Things　(IoT).　The　available　researches　cannot　guarantee　to　prevent　attacks　from　malicious　nodes.　We　propose　a　trusted　measurement　scheme　of　behaviors　for　IoT.　First,　we　construct　a　formal　model　for　the　behaviors　of　sensing　nodes　and　of　the　whole　sensing　network,　and　proposed　a　framework　of　a　trusted　measurement　of　behaviors,　which　contains　both　direct　and　indirect　trusted　measurements.　Afterward,　we　verify　the　efficacy　of　the　proposed　methods.　Experiments　suggest　that　the　proposed　trusted　measurement　scheme　provides　efficient　anti-attack　performance.　©　2020　THE　AUTHORS