The invention discloses a flexible OLED display panel, which comprises a flexible substrate, an OELD device, a first encapsulation layer, a barrier layer and a second encapsulation layer, wherein the OLED device is arranged on the flexible substrate; the first encapsulation layer is arranged on the flexile substrate and covers the OLED device; the barrier layer is arranged on the flexible substrate, surrounds the periphery of the first encapsulation layer, and comprises a plurality of discontinuous barrier units; the plurality of barrier units are arranged in a chain form; and the second encapsulation layer is arranged on the flexible substrate and covers the first encapsulation material and the barrier layer. The flexible OLED display panel is capable of effectively blocking the diffusion effect of atomic deposition coating and enhancing the water blocking capacity of a thin-film encapsulation on the periphery of the flexible OLED display panel; meanwhile, the reelability of the barrier layer is increased; the development requirement of the flexible OLED display panel is relatively well met; and an important idea is also provided for development of the flexible OLED display panel.