用中空石墨电极等离子体感应炉研究了在等离子条件下锰在铁渣间还原的规律。研究证实，在等离子体条件下Ｓｉ－Ｍｎ耦合反应的平衡能向高温方向移动，ＭｎＯ的还原速度急剧提高，存在着用碳作还原剂强化ＭｎＯ的还原过程，直接用富锰渣冶炼锰铁和类似铁合金的可能性。 The law of reduction of manganese in iron slag under plasma condition was studied by hollow graphite electrode plasma induction furnace. It has been confirmed that the equilibrium of Si-Mn coupling reaction can move towards high temperature under plasma conditions and the reduction rate of MnO rapidly increases. There exists a reduction process of MnO using carbon as a reducing agent to directly ferromanganese ferromanganese and the like Ferroalloy possibilities.