目的对儿童外周血微量元素水平进行分析,为合理补充微量元素提供依据。方法通过对1 159例儿童外周血中钙、铜、铁、镁、锌含量的检测,了解各年龄段儿童微量元素的分布及缺乏情况。结果 1~13岁儿童5种微量元素中锌的缺乏率最高为37.5%,其次是铁,为13.5%,钙、铜、镁的含量均在正常范围,不同性别间缺乏率比较差异无统计学意义,不同年龄组间铁缺乏率比较差异有统计学意义(镁除外),锌缺乏率比较差异无统计学意义。结论微量元素在不同年龄段末梢血中的含量存在差异,需应定期对儿童进行微量元素检测。儿童的生长发育较快,铁、锌在不同程度上存在缺乏状况,应加强保健指导,以改善铁和锌的缺乏状况。 Objective To analyze the levels of trace elements in children’s peripheral blood and provide evidence for the rational supplementation of trace elements. Methods The contents of calcium, copper, iron, magnesium and zinc in peripheral blood of 1 159 children were detected to understand the distribution and the lack of trace elements in children of all ages. Results The highest rate of zinc deficiency in the five trace elements was found in children aged from 1 to 13 years (37.5%), followed by iron (13.5%). The contents of calcium, copper and magnesium were in the normal range. There was no significant difference between the sexes Significance, different age groups iron deficiency rate difference was statistically significant (except magnesium), zinc deficiency rate difference was not statistically significant. Conclusion There are differences in the contents of trace elements in peripheral blood of different age groups, and children should be tested regularly for trace elements. Rapid growth and development of children, iron, zinc in varying degrees, there is a lack of health guidance should be strengthened to improve the lack of iron and zinc.