A flexible display panel and a display device are disclosed. An opening hole is defined in a corner splicing section of the flexible display panel and is filled with a splicing element formed by filling a light guide material, and a light guide layer is disposed on one side of a display surface of the flexible display panel at a same time. Therefore, the flexible display panel and the display device of the present disclosure can prevent wrinkle phenomena and realize normal light emission in the corner splicing section.