On the base of calculation pattern for the affecting density of Fe-Mn all-oys melt the density of balance. of oxygen for Fe-Mn-O metal melts is further calculated the result is totally conformed to the test data. 本文在推导Fe-Mn合金熔体作用浓度计算模型的基础上,进一步计算了Fe-Mn-O系金属熔体平衡氧浓度,其结果与实验数据完全一致。