Now　the　existing　virtual　trusted　platform　module　has　been　applied　to　the　Linux　system.　However,　there　is　not　yet　implementation　under　Windows　platform.　In　this　paper,　the　design　is　a　virtual　TPM　system　under　Windows　which　has　a　three-layer　architecture.　The　lowest　layer　is　virtual　TPM　or　TPM　chip　prototype-board,　the　intermediate　layer　is　the　virtual　driver　and　TrouSerS　for　data　interface,　and　the　upper　layer　is　the　virtual　TPM　testing　module.　The　system　provides　the　capabilities　of　multi　virtual　TPM　co-processing　trusted-requirements,　and　remote-accessing　virtual　TPM　and　TPM　chip　prototype-board.