Silver-coated copper powder, as a good high conductive filler, can be made into various conductive and electromagnetic shielding products by adding it into coatings (paints), adhesives (adhesives), inks, polymer slurries, plastics, rubber and the like, and can be widely applied to the fields of conductive and electromagnetic shielding and the like of various industrial departments such as electronics, electromechanical, communications, printing, aerospace, weapons and the like. Such as computers, mobile phones, electronic medical equipment, electronic instruments and meters and other electronic, electrical, communication products conductive, electromagnetic shielding.