An optical measurement apparatus according to the present invention includes: an irradiation fiber a plurality of light receiving fibers a light source unit that generates and outputs light to irradiate a biological tissue and supplies the light to the irradiation fiber a measurement unit that has a plurality of measurement units and performs spectrometry on each returned light from the biological tissue, the returned light output by each of the light receiving fibers and a control unit that causes a predetermined storage unit to store a measurement result by the measurement unit: and the control unit causes the storage unit to store a measurement result after each measurement unit starts measurement for characteristic value obtainment, the measurement result being data necessary to obtain a characteristic value of the biological tissue.
