A pulse wave detection device for detecting pulse wave data indicating a pulse wave of a user includes: a pulse wave detection unit (1011) which detects pulse wave data indicating a user pulse wave intime series; a pulse wave differentiation unit (1012) which calculates time series velocity pulse wave data by performing time differentiation on the time series pulse wave data detected by the pulsewave detection unit (1011); a component extraction unit (1013) which repeatedly extracts a maximum value and a minimum value of the time series velocity pulse wave data calculated by the pulse wave differentiation unit (1012) contained in a first time range while shifting the first time range in the time axis direction; a component ratio calculation unit (1014) which calculates a component ratio,i.e., the ratio between the maximum value and the minimum value extracted by the component extraction unit (1013) for each of the first time range; and a noise section judging unit which judges thata section where the component ratio calculated by the component ratio calculation unit (1014) is temporally unstable is a noise section.