An electronic paper display device and a method of manufacturing the electronic paper display device are disclosed. The method in accordance with an embodiment of the present invention includes forming a plurality of partition walls on a lower board, in which the partition walls partition the lower board into cells, disposing a display unit in the cell, and attaching an upper board on an upper part of the plurality of partition walls such that the display unit is covered. This method can adjust a distance between display units and the shape of the display units, and the quantity of disposed display units can be made uniform, whereby the visual quality of the display can be improved by removing spots formed on a screen.