As　an　important　part　of　Trusted　Computing,　remote　attestation　is　an　effective　mechanism　to　convince　trust　among　computing　platforms　in　open　network　environment.　Existing　property-based　attestation　has　a　lot　of　shortcoming.　Aiming　at　the　problems　of　low　signing　efficiency,　high　complexity　of　platform　configuration　validation　and　platform　identity　leakage　in　property-based　attestation　PBA　protocol,　a　improved　PBA　scheme　is　proposed　in　this　paper.　A　message　group　CL-LRSW　signature　scheme　is　proposed　based　on　bilinear　map　to　promote　the　efficiency　in　the　original　scheme　with　the　feature　of　short　signature　size,　high　compute　efficiency　and　high　secure　level.　In　signing　process,　Schnorr＇s　signature　scheme　is　adopted　to　overcome　the　defect　of　zero　knowledge　signature　algorithms.　Moreover　the　AIK　algorithm　is　replaced　with　DAA　algorithm　so　the　combination　of　PBA　and　DAA　will　meet　their　optimum.　In　this　case　the　anonymity　and　privacy　of　platform　identity　is　assured　at　the　same　time.　The　PBA　scheme　proposed　both　adopt　the　bilinear　map　which　can　be　realized　effectively　based　on　chinese　trusted　cryptography　module(TCM).　The　practical　application　of　TCM　is　promoted　on　some　extent　by　our　schemes.