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目的 探讨早发型子痫前期的临床特征。方法 选择早发型子痫前期患者（发病孕周＜34周）46例（A组），晚发型子痫前期患者（发病孕周≥34周）45例（B组），同时期产检正常孕妇（孕周＜34周）30例（C组），≥34周孕妇30例（D组）。检测并比较各组血清总蛋白（TP）、血红蛋白含量（Hb）、血细胞比容（HCT）。结果 A组TP、Hb、HCT显著低于B组，且A组TP、Hb、HCT显著低于C组，差异均有统计学意义（ P ＜0．05）；C组血清TP、Hb、HCT与D组比较无显著性差异（ P ＞0．05）。结论 早发型子痫前期发生可能与低蛋白血症、贫血相关，改善孕期营养状况可减少其发生。“,”Objective]To explore clinical characteristics of early‐onset preeclampsia .[Methods]A total of 46 cases of early‐onset preeclampsia(onset gestational age<34 weeks)(group A) ,45 cases of late‐onset pre‐eclampsia(onset gestational age≥34 weeks)(group B) ,30 cases of normal pregnant women(gestational age<34 weeks)(group C) and 30 cases of normal pregnant women(gestational age≥34 weeks)(group D) were cho‐sen .Serum total protein(TP) ,hemoglobin(Hb) and haematocrit(HCT) in each group were examined and compared .[Results]TP ,Hb and HCT in group A were markedly lower than those in group B ,while those in group A were markedly lower than those in group C ,and there was significant different( P 0 .05) .[Conclu‐sion]Early‐onset preeclampsia may be related to hypoproteinemia and anemia .Improving nutrition status can reduce the incidence of early‐onset preeclampsia .