Abstract: It was determined through a large amount of beneficiation test to adopt chloridizing roasting-cyanide leaching as the principle beneficiation flowsheet for a certain silver-manganese concentration ore.The test results indicate that we can get the leaching rates of silver is up to 88.54%,firing temperature was 750℃,firing time was 30 minutes and sodium cyanide was 6kg/t and lixiviating time was one hour.