Method for forming dye transfer image using amphoteric surface active agent

A method for forming an image comprising heating a light-sensitive element in the presence of water and at least one of base and a base precursor after or simultaneously with imagewise exposure to light thereof, said light-sensitive element comprising support having provided thereon a light-sensitive layer comprising a light-sensitive silver halide emulsion, a binder, and a dye providing substance which forms or releases a diffusible dye upon heating, and transferring said diffusible dye thus formed or released to a dye fixing layer of a dye fixing element, wherein at least one of said light-sensitive element and said dye fixing element contains an amphoteric surface active agent, wherein said water is supplied from exterior the light-sensitive element and the dye fixing element and is supplied in an amount of from 0.1.times. the weight of all layers comprising the light-sensitive element and the dye fixing element to the weight of water corresponding to the maximum swelling volume of all the layers in the light-sensitive element and dye fixing element.