A flexible display panel and a display device are provided. The flexible display panel has a bent edge area and a planar area. The bent edge area and the planar area are arranged in the row direction. A boundary extends in the column direction between each of the at least one bent edge area and the planar area. A side of the bent edge area that is away from the planar area is bent towards a non-light-exiting side of the flexible display panel, so that a portion of the flexible display panel that is located in the bent edge area forms a curved surface when the flexible display panel is in a bent state. A size of each column of sub-pixels located in the edge area in the row direction is larger than a size of each column of sub-pixels located in the planar area in the row direction.