Abstract: Objective  To  investigatethe prevalence of children with attention deficit hyperactivity disorder (ADHD) in China，in order to provide a basis evidence for intervention in ADHD treatment in China.Methods  A computerized literature search was carried out in several databases such as  Wanfang database， China Journal Fulltext Database (CNKI)， VIP database， PubMed and China biomedical database (CMB) database， a collection of China children with attention deficit hyperactivity disorder.Results  Thirtythree papers up to 132 204  participants were included in this study. The total prevalence of ADHD in children was  5.5% （95%CI=4.8%6.2%）;Subgroup analysis showed  the prevalence of boys was higher  than  that of girls，the prevalence of the western region was higher than that of central and eastern regions，the prevalence of ADHDI  which was highest accounted  for 3.4%（95%CI=2.5%4.3%）. Conclusion  The prevalence of ADHD is higher in China and  has become a serious public health issue.

Key words: attention deficit and disruptive behavior disorders, child, metaanalysis