The embodiment of the invention provides a method for reducing chromatic aberration of cold rolled dual-phase steel. The method is used for reducing chromatic aberration of the surface of the cold rolled dual-phase steel and comprises the steps that according to the needed thickness of a cold-rolled sheet, the thickness of a hot-rolled sheet is determined; according to the thickness of the hot-rolled sheet, a sheet blank is hot-rolled through a hot mill, and the hot-rolled sheet is obtained; the hot-rolled sheet is cooled in layer cooling equipment, and temperature compensation is conducted on at least one part in the hot head and a hot tail of the hot-rolled sheet; and the hot-rolled sheet is reeled into strip steel in a reeling machine.