A flexible display device, which at least includes a plurality of bonding pins. A plurality of first bonding pins are disposed on an interlayer between a TFT array substrate and a color film substrate, and the plurality of the first bonding pins respectively extend to a first lateral surface of the TFT array substrate and a first lateral surface of the color film substrate; a plurality of second bonding pins are used for bonding with a first flexible circuit board and are partially disposed on a bottom surface of the TFT array substrate; and a plurality of third bonding pins are used for bonding with a second flexible circuit board and are partially disposed on an upper surface of the color film substrate.