Provided is a fluorescence endoscope device including a light source that irradiates with excitation light and white light an image generator that acquires a fluorescence image by capturing fluorescence generated in a subject irradiated with the excitation light and that acquires a white-light image by capturing return light from the subject irradiated with the white light an image corrector that corrects the fluorescence image by using the white-light image so as to generate a corrected fluorescence image a threshold-value setting unit that sets a threshold value on the basis of an average value of gradation values of pixels in the corrected fluorescence image an image adjuster that increases the contrast in the corrected fluorescence image between an area having gradation values larger than the threshold value, and an area having gradation values smaller than the threshold value and a monitor that displays the corrected fluorescence image whose contrast is increased.
