Disclosed are an apparatus and a method for removing strands of hair from a near-infrared spectroscopy. The apparatus for removing strands of hair from a near-infrared spectroscopy may comprise: an arch-shaped main body worn on the head of a user, having a plurality of protrusions formed at an inner side part of the arch-shaped main body, and configured to expose a portion of scalp by arranging the strands of hair; a probe configured to come into close contact with the scalp; and a sensor configured to be accommodated inside the probe and receive light.