The embodiment of the invention discloses a display panel and a display device. The display panel comprises a first substrate, a second substrate, a plurality of pixel units and spacers, wherein the first substrate comprises a plurality of scanning lines and a plurality of data lines; the scanning lines and the data lines crosswise define the plurality of pixel units; the second substrate comprises a plurality of color filter units; a first black matrix extending in the extending direction of the data lines is arranged between each two color filter units in the extending direction of the scanning lines; each pixel unit corresponds to a color filter unit; the spacer is arranged between at least two adjacent color filter units in the extending direction of the scanning lines; the orthographic projection of the space in the second substrate is positioned in the first black matrix; the size of the first black matrix corresponding to the spacer in the extending direction of the scanning lines is greater than that of other first black matrixes in the direction of the scanning lines. The display panel solves the problems that the spacer has high probability of slipping into a through hole in the direction of scanning lines, so as to cause abnormity of the thick of the panel or extrusion color cast, and the longitudinal opening ratio of the display panel is limited.