Abstract: The present invention is to provide a monitoring device for inspection diagnosis in traditional Chinese medicine, comprising: a housing, a light source and a shooting structure, the said light source and shooting structure are positioned in the housing, a photoconductive component is positioned in the said housing, the said photoconductive component comprising at least one photoconductive layer, the said light source is positioned inside the photoconductive layer or on the side cross section of the photoconductive layer, with the diffuse reflection of the photoconductive component the said light source forms a area light source. In the present invention, as the photoconductive component is adopted in light transmission, the point light is converted to area light so that a soft, stable and uniform illumination environment similar to the natural light comes into being in the monitoring device.