目的探讨注意缺陷多动障碍(attention-deficit hyperactivity disorder,ADHD)儿童脑电图的改变。方法对37例临床诊断为ADHD儿童及30例年龄匹配的健康儿童进行定量脑电图分析。记录安静闭目状态下的脑电图,经傅里叶转换得到α1、α2、α3、β、θ频段绝对及相对功率,以及αL/αR、θ/α等。结果 ADHD组较对照组θ活动增加,α、β活动在不同的脑区结果不同,θ/α升高,αL/αR于额部降低。结论 ADHD患儿的脑电图与正常儿童存在着差异。 Objective To investigate the changes of EEG in children with attention-deficit hyperactivity disorder (ADHD). Methods Quantitative EEG analysis was performed on 37 children with ADHD and 30 age-matched healthy children. The electroencephalogram (EEG) was recorded in a closed and closed state. The absolute and relative power of α1, α2, α3, β and θ bands were obtained by Fourier transform and αL / αR, θ / α and so on. Results Compared with control group, θ activity increased in ADHD group. Α, β activity varied in different brain regions. Θ / α increased and αL / αR decreased in frontal area. Conclusion EEG in children with ADHD and normal children there are differences.