Provided is a test object visualizing device, including: light irradiating unit configured to make wavelength of at least any one of pump light and Stokes light generated on the same optical path variable per test position of test object, and irradiate test object with pump light and Stokes light； molecule distribution image generating unit configured to detect anti-Stokes light emitted from test object according to wavelength difference between pump light and Stokes light, and generate a molecule distribution image based on anti-Stokes light； tomographic image generating unit configured to detect at least any one of reflected light from test object when irradiated with pump light and reflected light from test object when irradiated with Stokes light, and generate a tomographic image of test object based on the reflected light detected； and image display unit configured to display at least any one of molecule distribution image and tomographic image generated.
