An image forming method has applying an ink composition winch includes: at least a pigment, water, and polyvalent (meth)acrylamide of 3.0 mass % or more and 15.0 mass % or less with respect to the entire ink composition as a polymerizable compound, to a coated paper having a pigment layer on at least one surface of a support in which cellulose pulp is a main component, using an ink jet method; at least drying the applied ink composition; and curing the ink composition on the coated paper by irradiating active energy rays at an illuminance of 1 W/cm2 or more and 2 W/cm2 or less to the ink composition which has undergone drying processing.