目的  评估我国适龄儿童水痘减毒活疫苗（varicella attenuated live vaccine, VarV）第2剂（VarV 2）接种率水平。方法  检索中国知网、中国生物医学文献数据库、维普、PubMed和Web of Science电子数据库从2013年1月至2022年5月发表的VarV 2接种率相关文献，使用Stata 15.0软件对VarV 2接种率进行荟萃分析。结果  共检索到3 352篇文献，其中19篇文献纳入荟萃分析。汇总结果显示，我国适龄儿童VarV 2接种率为55.3%（95%置信区间：48.4%~62.2%，I²=100%）；本地儿童VarV 2接种率高于外地儿童，不同性别儿童VarV 2接种率差异不大。敏感性分析发现VarV 2接种率介于53.5%~57.1%之间，发表偏倚结果为阴性。结论  目前我国VarV 2接种率处于较低水平，建议适时推行VarV两剂接种策略，已实施两剂接种策略的省份采取针对性措施以提高接种覆盖率。

Objective  To evaluate the vaccination rate of the varicella attenuated live vaccine (VarV) second dose (VarV 2) among eligible children in China. Methods  A search was performed for VarV 2 vaccination rate related studies published in CNKI, China Biology Medicine, VIP, PubMed and Web of Science electronic databases from January 2013 to May 2022. Meta-analysis of VarV 2 vaccination rate was performed using Stata 15.0 software. Results  A total of 3 352 literatures were retrieved, of which 19 were included in this Meta-analysis. The pooled results showed that the VarV 2 vaccination rate of eligible children in China is 55.3% (95% confidence interval: 48.4%-62.2%, I²=100%). The VarV 2 vaccination rate of local children was higher than that of non-local children, and the VarV 2 vaccination rates varied little among children of different sexes. Sensitivity analysis demonstrated that the VarV 2 vaccination rate ranged from 53.5% to 57.1%, and the results of publication bias were negative. Conclusion  The VarV 2 vaccination rate in China is at a low level at present. It is recommended to implement the VarV two-dose vaccination strategy in a timely manner. Provinces that have implemented the two-dose vaccination strategy should take targeted measures to improve the vaccination coverage.