The invention provides a display device and a driving method of the display panel. Each line of data wire in the display panel is provided with two sub-data wires. The driving method of the invention comprises the steps as follows: firstly, an input image signal is divided into a plurality of image sections; each image section is provided with display data of pixels which are coupled with two adjacent lines of scanning wires; subsequently, every K image sections are divided into a group; then, a reset data is inserted into the image section of each group so as to form an image signal. The display data of the first group is written in by K times according to a first starting waveform; after a given time of the first starting waveform, the scanning wire corresponding to the first group is driven simultaneously according to a second starting waveform; the reset data is output to the first sub-data wire and the second sub-data wire.