The　national　standard　of　transition　duration　of　pulse　parameter　in　China　is　7.25　±　0.40　ps.　The　standard　is　not　only　a　pulse　signal　source　standard　with　the　known　information　about　time-domain　characters　and　transition　duration,　but　also　a　oscilloscope　standard　with　the　known　impulse　response　of　the　oscilloscope.　The　nominal　value　of　transition　duration　of　Agilent　4016　minus　step　pulse　source　is　5ps,　faster　than　the　national　standard.　So　Agilent　4016　could　not　be　calibrated　by　the　national　standard　according　to　traditional　calibration　method.　The　new　calibration　method　has　been　studied　in　the　paper　by　using　the　national　standard.　Devolution　algorithm　was　also　used　in　measurement　data　processing.　Experiment,　data　processing　and　uncertainty　estimation　were　done　and　calibration　of　Agilent　4016　by　national　standard　was　come　true.　©　2011　IEEE.