Agilent　86100C　is　the　broadband　sampling　oscilloscope　with　a　nominal　bandwidth　of　70　GHz.　The　pulse　signal　source　with　the　transition　duration　of　less　than　2　ps　is　used　to　calibrate　according　to　the　tradtional　calibration　method.　The　national　standard　of　the　pulse　parameter　was　established　by　NTN　techonlogy　and　Agilent　86100B.　The　standard　is　not　only　a　pulse　signal　source　standard,　but　also　an　oscilloscope　standard.　However,　the　transition　duration　of　pulse　parameter　national　standard　of　China　is　(7.25±0.50)　ps,　and　is　not　qulified　for　calibrating　Agilent　86100C　according　to　the　traditional　calibration　method.　The　calibration　method　of　Agilent　86100C　using　pulse　parameter　national　standard　is　researched　in　this　paper.　The　method　extends　the　application　of　the　pulse　parameter　national　standard,　and　solves　the　calibration　problem　of　Agilent　86100C　at　the　same　time.