The present application provides a display panel and a display device. The display panel comprises a plurality of dummy lines, a plurality of first data lines and a plurality of fan-out lines electrically connected to a plurality of the first data lines in the active area. A plurality of the dummy lines include a plurality of first dummy lines being alternately spaced from a plurality of first data lines and a plurality of second dummy lines being disposed on extension lines of a plurality of fan-out lines, so as to improve the distribution density of wirings in the active area, thereby improving the problem of uneven display when the display panel is power off.