An optical feature information extraction system according to the present disclosure includes a light source part which generates light having a plurality of wavelengths; a photodetecting part which detects light of each wavelength by any one of scattering, transmission, and reflection of the generated light with respect to an object; an analog front end part amplifying a first measurement value from the photodetecting part; and a control part which extracts an optical feature value for the object based on the amplified first measurement value.