This present invention provides an electronic paper display device. The electronic paper display device includes a thin film transistor array substrate and a display panel disposed on one side of the thin film transistor array substrate. The thin film transistor array substrate comprises a first substrate, a first metal layer, a dielectric layer, a second metal layer, a channel layer, a pixel electrode layer, a protection layer, a first resin layer and a second resin layer. The display panel includes a second substrate, a transparent electrode layer disposed on the second substrate, and an electronic ink material layer between the transparent electrode layer and the thin film transistor array substrate.