The　risk　of　the　key　authentication　information　being　bypassed　and　the　potential　safety　hazard　of　booting　data　being　tampered　with　both　exist　in　the　booting　mechanism　of　the　traditional　operating　system.　Based　on　the　theory　of　trusted　computing,　combined　with　the　technology　of　smart　card　with　CD-ROM　file　system,　a　scheme　of　trusted　boot　based　on　general　smart　card　was　proposed.　Without　changing　the　structure　of　hardware　and　firmware　of　the　smart　card　and　terminal　device,　through　the　transformation　of　storage　data　in　the　smart　card　and　disk　booting　data,　the　security　objective　of　binding　the　user＇s　identity　information,　the　smart　card　and　the　terminal　device　were　achieved.　The　trusted　computing　mechanism　was　extended　from　power　on　to　the　application　layer　to　ensure　that　the　initial　state　of　operating　system　was　trustworthy.　Through　the　analysis　of　security　and　performance,　the　security　of　terminal　device　bootstrap　was　proven,　which　has　been　verified　in　practical　applications.　©　2017,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.