The main composition that can be recovered is manganese in a polymetallic primary manganese carbonate ore with low phosphorus and high sulfur content,and gold and silver are comprehensively recovered.Based on the ore property,the experiment uses joint process of flotation-magnetic separation to recover manganese,gold and silver.The results show that under optimal conditions,relatively high grade manganese concentrate is obtained,and valuable metals of gold and silver are effectively enriched in sulfur concentrate;silver and gold grades in sulfur concentrate are 945 g/t and 10.30 g/t respectively,silver and gold recovery rates are 72.43 % and 85.07 % respectively;manganese grade in manganese concentrate is 29.63 % and manganese recovery rate is 86.27 %.