The 3D skin image analyzer uses UVA light source with a wavelength of 320 ~ 400nm, which is harmless to human body, penetrates deep into the skin through UV isolation film, interacts with different cells, secretions and skin colonies, generates fluorescence effect and then images. It can distinguish facial symptoms according to fluorescence shape, color and depth, and analyze deep spots such as dot spots, fork spots, pockmark color and grease acne problems.