This invention relates to a personal feature diagnostic apparatus on the basis of an oscillometric arterial pressure measurement comprising a pressure detection sensor unit for detecting a cuff pressure including an effect of pulse wave a pulse wave extraction unit for extracting pulse wave signals of the artery from the cuff pressure detected in the pressure detection sensor unit a pulse wave amplitude detection unit for dividing pulse wave signals extracted from the pulse wave extraction unit into a plurality of window sections and detecting a minimum amplitude pulse in each window section and a personal feature diagnostic unit for diagnosing personal feature by using the minimum amplitude pulse in each window section detected by the pulse wave amplitude detection unit.
