Objective　To analyze the detection rate of prenatal depression and elucidate its influencing factors. Methods　742 pregnant women were recruited to our hospital for prenatal examination. The Edinburgh Postnatal Depression Scale was used to assess depression levels and demographic，medical and psychosocial information was collected. Univariate and multivariate Logistic regression analysis was used to explore the influencing factors of prenatal depression. Results　The rate of prenatal depression was 11.9％ in Beijing. Independent influencing factors included history of mental illness，male preference of pregnant women and in-laws，social support level，occupational status，and per capita living area（P<0.05）. Conclusion　A history of mental illness，preference for boys by pregnant women and in-laws，low levels of social support，joblessness，and low living space are risk factors for antenatal depression，and pregnant women who meet the above factors should be screened in a focused manner to reduce the incidence of antenatal depression.

目的 分析产前抑郁检出率并阐明其影响因素。方法 招募来我院接受产前检查的孕妇742名。采用爱丁堡产后抑郁量表评估抑郁水平，并收集人口学、医学及社会心理学信息。采用单因素与多因素Logistic回归分析探索产前抑郁影响因素。结果 (1)北京地区产前抑郁检出率为11.9%；(2)多因素Logistic回归分析显示，精神疾病史、孕妇及婆家的男孩偏好数、社会支持水平、职业状态以及人均居住面积是产前抑郁的独立危险因素（P<0.05）。结论 有精神疾病史、孕妇及婆家偏好男孩、社会支持水平低、无业、居住面积偏低是产前抑郁的危险因素，应对符合上述因素的孕妇进行重点筛查，减少产前抑郁发生。