The disclosure discloses a color filter substrate and a display device, where the color filter substrate includes a substrate including an active area and a peripheral area, there is such a first black matrix layer on a first surface of the substrate that has a part in the active area, there is a second black matrix layer on a second surface of the substrate facing away from the first surface; and an orthographic projection of the second black matrix layer onto the second surface, and an orthographic projection of the first black matrix layer onto the second surface, after they are overlapped with each other, covers the peripheral area of the color filter substrate; and the display device includes an array substrate, a liquid crystal layer, and the color filter substrate above.