An image forming method includes: by using a plurality of liquid developers having different colors, forming a plurality of single color images corresponding to the colors; transferring a non-fixed color image onto a recording medium; and fixing the non-fixed color image onto the recording medium. In the image forming method, each of the liquid developers includes an insulting liquid containing unsaturated fatty acid components and toner particles dispersed in the insulating liquid, and an oxidation polymerization accelerator that accelerates an oxidation polymerization reaction of the unsaturated fatty acid components during fixation is contained in the liquid developer forming the single color image that is positioned closest to the recording medium among the plurality of single color images forming the non-fixed color image.