Abstract: This paper uses dynamic planning to study China's rareearth metal strategic reserve in 2012—2020. Mining rareearth metal in Chinas market leads to an increased rareearth metal reserve, but at variable rate as time goes by. An interrupt of rareearth metal supply will cast impacts on rareearth metal reserve, which shall be raised at rate with a rising interrupt. A flexible demand of rareearth metal also is related to the optimal rareearth metal reserve. This paper proposes to set up laws on rareearth metal reserve, different rareearth metal with different reserve means, to provide a capital guarantee and to intensify technical research and development.

Key words: rareearth metal, strategic reserve, dynamic planning, DP mode

摘要： 采用动态规划法，研究2014—2020年中国稀土战略储备的最佳储存量。结果表明，若中国国内市场上有稀土采集行为，随着时间的变化，我国的稀土最优储备规模在不断增加，但增加的速度是不一致的；稀土供应中断比例会影响稀土的储备量，随着稀土供给中断比例的增加，最佳存储速度也相应增加；稀土需求弹性值会影响稀土的最佳储存规模。针对以上结论提出了构建稀土资源储备法律制度，对不同稀土品种确立合理的储备方式，为稀土资源储备提供资金保障，加强稀土的研究与技术开发等实现路径。

关键词: 稀土, 战略储备, 动态规划, DP模型