Aiming　at　improving　the　Property-Based　Attestation　without　Trusted　Third　Party,　some　modifications　were　put　forward.　The　attestation　model　was　modified,　and　the　Pedersen　Commitment　Scheme　was　used　again　to　hide　the　configuration　of　platform,　so　that　the　privacy　leakage　problem　which　then　brings　the　computing　complexity　can　be　solved.　The　protocol　is　applicable　to　the　case　without　Property　Certification　Authority,　and　can　provide　security　and　privacy　of　high　level　with　higher　usability　and　lower　computing　complexity.　©　2011　IEEE.