An ink jet printing method makes it possible to prevent bleeding, which may take place if non-permeative ink of different colors are in contact with each other on a paper sheet, by selecting according to image information either a step A of providing a processing liquid, at first, in the area on a printing material for images to be printed thereon, and then, providing such ink or a step B of providing such ink, at first, in the area on the printing material for images to be printed thereon, and then, providing such liquid.