A pulse wave measuring apparatus includes a pulse wave measuring unit measuring a pulse wave a first detection unit detecting first maximum and minimum values a second detection unit detecting second maximum and minimum values an update unit updating the first maximum and minimum values with the second maximum and minimum values after time periods an initialization unit initializing the second maximum and minimum values after updating the first maximum and minimum values a timing detection unit detecting a time determined by the first maximum and minimum values and an interval calculation unit calculating a pulse wave interval using the timing.
