Embodiments of the present disclosure provide a stretchable flexible display panel and a display device. By providing a metal connecting structure having a buffering effect in a stretching region on the flexible display panel, it is possible to achieve electrical signal transmission among a plurality of first display sub-regions and achieve stretchability of the flexible display panel. Moreover, problems such as breakage of a metal trace inside the display panel caused by a stretching operation are less likely to occur, such that good stretchability is achieved.