An apparatus for noninvasive measurement, which noninvasively measures glucose in a subject optically through a measurement probe, comprising: a light source and a light detector both of which are connected to the measurement probe a moving unit which moves the measurement probe and a control unit which performs noninvasive measurement by controlling the light source and the light detector, and also ahead of the noninvasive measurement, controls the moving unit such that the measurement probe is brought into contact with a skin part of a subject for stretching the skin part of the subject under a pressure per unit area that is higher than during the noninvasive measurement, and a corresponding method.