This　paper　studies　development　of　dynamic　trusted　measurement,　and　concludes　the　merits　and　faults　of　these　methods.　This　paper　presents　an　trusted　dynamic　measurement　model　based　on　the　finite　state　machine.　By　constructing　the　state　benchmark　library　of　application,　we　can　measure　the　Trustworthiness　of　application　through　measuring　whether　the　running　state　is　in　the　state　benchmark　library.　©　2011　IEEE.