An electrophotographic image forming method is disclosed in which toner has a number ratio of toner particles having a shape coefficient of 1.2 to 1.6 being at least 65 percent, a variation coefficient of the shape coefficient of 4 to 16%, and a number variation coefficient in the toner number particle size distribution of 8 to 27 percent, and charge generation material used in the photoreceptor contains a mixture compound represented by Formula 1 in which n has a range of distribution and (x+y) is not more than 99% when x represents the ratio of a component having the largest content and y represents the ratio of a component having the second content, X-(CTM-group).sub.n-Y: Formula (1) CTM-group is a charge transfer group; X and Y are each a hydrogen atom, a halogen atom or a mono-valent organic group; and n is an integer of from 0 to 10.