At present, most of the current nuclear power plants are the large power capacity types, some can up to 1750MW per nuclear reactor. It has the high investment and long construction period, and it can not suit for the small electricity grid problems, but the modular miniature nuclear power reactor can solve these problems. For above, the modular miniature nuclear reactor is highly cared and researched by people all over the world. The paper briefly summarizes the research and development status, and applications of the modular miniature nuclear power reactor, also analyses the advantages and the prospect of it.%目前的核电站大多数为装机容量较大的反应堆，有些甚至达到了175万千瓦的单机容量，大型堆核电站一次性投入成本高、建造周期长，且难以适应小型电网的需求，而小型反应堆恰好可以解决这一问题，全球掀起了模块式小型核电机组的开发热潮。文章主要介绍了模块式小型反应堆的研发现状、用途，并分析了小型堆与常规堆的优劣势及其发展前景。
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