Embodiments of the present disclosure provide an array substrate and a display device. The array substrate has a display area and a non-display area and includes: a base substrate; a plurality of pixel units arranged in the display area on the base substrate and each comprising a common electrode and a pixel electrode; and a common electrode leading-out line provided in the non-display area on the base substrate; common electrodes of at least one row and/or column of pixel units are connected with one another and with the common electrode leading-out line.