The invention relates to the field of printing devices, more particularly to an E-paper printing device and an E-paper printing method. The E-paper printing device provided by the invention comprises a printhead for applying an electric field to the E-paper, the printhead comprises a first printhead and a second printhead disposed opposed to the first printhead, the E-paper is fed through between the first printhead and the second printhead, and portions of the first printhead and the second printhead contacting with the E-paper respectively are flat surface. The E-paper printing device may perform rapid printing on the E-paper with high precision.