The present invention provides an image processing method for color correction. The image processing method for color correction comprises the steps of: (a) determining an angle on a color space according to an image data of a basic color, (b) determining a first straight line on the color space according to the angle, wherein the first straight line makes the same angle with the color space, (c) determining a second straight line on the color space according to an image data of a pixel and the angle, wherein the slope of the second straight line is the same to that of the first straight line, (d) providing a processing range parameter and according to the processing range parameter, determining a third straight line and a fourth straight line of two color correction range lines which are parallel to the first straight line, wherein the first straight line is a center line between the third straight line and the fourth straight line, (e) determining at least one another color correction range bounded line according to the processing range parameter and dividing several regions among the color correction range bounded line, the third straight line, and the fourth straight line, wherein every region respectively corresponds to a correction value, (f) determining the color intensity difference value according to the correction value corresponding to the region on which the image data of the pixel is located, and (g) correcting the image data of the pixel according to the color intensity difference value.