对现行初中化学教材中关于氢气还原氧化钢的实验，按教材氢气还原性实验说明进行，都不易出现光亮的红色这一实验现象。分析其原因与氧化钢粉末跟试管接触不紧密以致氧化铜加热温度不够有关。本人在实验教学中多次改进，探索出一种较好的方法，实验时间短、药品用量少，介绍如 The experiment on hydrogen reduction of oxidized steel in the current junior middle school chemistry textbook is performed according to hydrogen reduction experiments of teaching materials, and the experimental phenomenon of bright red is not easy to occur. The reason for the analysis was related to the fact that the oxidation steel powder was not closely contacted with the test tube so that the heating temperature of the copper oxide was insufficient. I improved several times in the experiment teaching and explored a better method. The experiment time is short and the amount of medicine is small.