Embodiments of the present disclosure provide a display substrate. The display substrate includes: a substrate; a photosensitive device located on the substrate; a reflective structure located on a side of the photosensitive device away from the substrate and surrounding the photosensitive device in a direction parallel to the substrate, the reflective structure includes a first surface facing the photosensitive device, a second surface facing away from the photosensitive device, and a side surface connecting the first surface and the second surface; and the light processing portion located on at least one of the first surface and the side surface of the reflective structure, a light reflectivity of the light processing portion is smaller than a light reflectivity of the reflective structure.