A method for preparing a conductive material

A method for preparing a conductive material with a conductive pattern containing silver on a carrier, the method for producing a conductive material, the action of at least one of said (I) to (IV) on the image portion of the silver, provided on the support, includes: (I) a reducing substance that reduces a substance (II) a water-soluble phosphorus oxo acid (III) a water-soluble halogen compound (IV) warm water at 55 ° C or higher.