Provided is a measurement probe of which hygiene can be easily secured. The measurement probe (1) receives fluorescence emitted by radiation of excitation light to a fingertip (90). The measurement probe (1) includes: a radiating portion that radiates the excitation light； a light-receiving portion that receives the fluorescence； a sleeve (16) disposed at a front end portion of the radiating portion or the light-receiving portion； and a transparent quartz plate (15) disposed at a front end surface (14I) of the radiating portion or the light-receiving portion. The sleeve (16) is provided with an opening in which the quartz plate (15) is detachably mounted.
