Abstract: Disclosed are an electrophoretic display device and a method for driving the same. The electrophoretic display device includes a first electrode layer, a second electrode layer, an electrophoretic layer, and a controller. The first electrode layer includes a plurality of pixels formed thereon. The electrophoretic layer is disposed between the first electrode layer and the second electrode layer. The controller looks up a write-in gray level data of each pixel in each frame from a lookup table. The lookup table records the write-in gray level data of each pixel in each frame when a gray level of each pixel is changed from a reference gray level to a required gray level. The present invention is capable of decreasing the lookup table size.