The invention discloses a method to recover the gold, silver, iron and lead from the acidiation roasted cinder by a magnetic chlorination method, which is characterized in that the method comprises two sections, one is that the gold, silver, lead, and copper in the cinder are volatilized as a chloride gas through the high temperature chlorination roasting, and the gold, silver, copper and lead are recovered through the condensed gas; the other is that the iron is recovered by the process that the coal dust is filled during the granulation of the cinder, the magnetic reduction roasting is donewith the chlorination roasting, the ferric oxide is reduced to the ferroferric oxide, and the processed cinder is ground and selected magnetically. Thanks to the recovering method, the recovery rate of the gold and silver is above 95%, the iron recovery rate is above 85%, and the lead recovery rate is above 90%, the production cost is about 300 RMB per ton, the profit is over 700 RMB per ton, so that a multiple billion RMB profit is harvested, and the waste of the limited resource is reduced. The method to recover the gold, silver, iron and lead from the acidiation roasted cinder by a magnetic chlorination method has the advantages of simple process, high efficiency, low smelting cost, comprehensive utilization of the ore resources, elimination of the environment pollution, and economic benefit growth of enterprise.