A biological information measuring apparatus comprises: a light source； a guide unit that guides a luminous flux from the light source to a measurement target, which is part of a living body, and guides reflected light from the measurement target； a spectral unit that disperses the reflected light guided by the guide unit, with a predetermined resolution in a predetermined wavelength range； and an obtaining unit that sequentially obtains light intensities for a predetermined wavelength, which is part of light of a plurality of wavelengths obtained by the spectral unit.
