本文采用微波消解—自动电位滴定法测定铁矿石全铁量。重点研究自动电位滴定仪编写空白的滴定程序编写的方式对结果的影响、设计滴定程序,以经典的手工滴定法作对比,结果相似,达到滴定过程的自动化。结果表明:本法适用于铁矿石中全铁量的检测,测定范围为40%～70%,相对标准偏差小于2%。 In this paper, microwave digestion - automatic potentiometric titration of iron ore total iron content. Focus on automatic potentiometric titration prepared a blank titration program written on the impact of the results, the design of titration procedures, the classic manual titration for comparison, the results are similar to the titration process automation. The results show that this method is suitable for the determination of total iron content in iron ore. The determination range is 40% -70% and the relative standard deviation is less than 2%.