A pulse wave measuring device includes a signal divider configured to divide a first corrected signal and a second corrected signal into a plurality of segments, respectively, each of which corresponds to a cycle of a pulse wave of a living body, the first corrected signal and the second corrected signal being results obtained through a first correction and a second correction respectively using a first signal and a second signal that are extracted from image data and that change in association with the pulse wave； an influence degree calculator configured to calculate a value indicating a degree of a noise influence in each of the first corrected signal and the second corrected signal for each of the plurality of segments； and a peak time detector configured to detect a time of occurrence of a peak in one of the first corrected signal or the second corrected signal.
