对３３例急性脑梗塞患者和２０例年龄匹配的健康老年人进行定量脑电图频谱分析发现，健康人各脑区的主频均数在９Ｈｚ以上，以α２频段为主，病例组各脑区的主频均数多数在８Ｈｚ以下，以θ、δ频段为主；急性脑梗塞病灶侧θ、δ频段相对功率值显著增高，同健测及对照组比较，差异有显著性意义。提示主频分布及各频段相对功率值可作为评价脑功能的稳定指标。 Quantitative EEG analysis of 33 patients with acute cerebral infarction and 20 age-matched healthy elderly showed that the main frequency of all brain regions were above 9Hz, Most of the dominant frequency average below 8Hz, θ, δ band based; acute cerebral infarction side θ, δ band relative power value was significantly higher, with the health and the control group, the difference was significant. Suggesting that the frequency distribution and the relative power of each band can be used as a stable index to evaluate brain function.