目的　分析职业女工不良妊娠结局的危险因素。方法　按标准要求和方法 ,在调查员统一培训后 ,同时调查了某大型石化企业和化纤企业 1992～ 1997年登记结婚的女工 12 41人和 12 0 8人 ,通过单因素和多因素非条件Logistic回归分析 ,探讨了影响女工不良妊娠结局的危险因素。结果和结论　导致女工发生不良妊娠结局的因素主要有人工流产、倒班、苯系混合物 (苯、甲苯、二甲苯 )接触和饮酒 ,其中苯系混合物接触可作为一项独立的危险因素。 Objective To analyze the risk factors of unfavorable pregnancy outcomes among professional female workers. Methods According to the standard requirements and methods, after unified training of investigators, 12,41 women and 12,080 married women registered in a large-scale petrochemical enterprise and a chemical fiber enterprise from 1992 to 1997 were investigated simultaneously. Through univariate and multi-factor non-conditional Logistic Regression analysis explores the risk factors that affect the outcome of adverse pregnancy outcomes among female workers. RESULTS AND CONCLUSION: The main causes of adverse pregnancy outcome among female workers were induced abortion, shift, benzene mixture (benzene, toluene, xylene) exposure and alcohol consumption, of which benzene mixture could be used as an independent risk factor.