Provided is a reflection detection type measurement method for skin fluorescence. The method includes: irradiating excitation light on a measurement target detecting a reflected light and a skin fluorescence generated from the measurement target due to the excitation light irradiating light with a wavelength range of the skin fluorescence on the measurement target detecting a reflected light generated from the measurement target due to the light with a wavelength range of the skin fluorescence and calculating a skin fluorescence value of the measurement target by correcting a calculation based on the detected reflected light and skin fluorescence.
