The present invention provides a digital driving method of an OLED display device, and the input front end data analysis module analyzes the data signals of at least two adjacent frames of image, and the OLED display device divides the data signals of each frame of image in the at least two adjacent frames of image into a plurality of subframes according to an order of display times, and adjusts an order of various color components outputted by the plurality of subframes corresponded with the data signals of each frame of image according to an analysis result of the data signals of at least two adjacent frames of image to prevent the new integral effect generates between the two adjacent frames of image because the data signals are different, and thus to eliminate the flicker and raising the image display quality.