目的了解职业性二氯乙烷中毒事故发生的原因,为采取相应卫生防护措施提供依据。方法采用回顾性职业流行病学调查方法。结果新的职业危害导致该厂相继发生两起职业性亚急性二氯乙烷中毒事故,造成2人中毒,其中1人轻度中毒,另1人重度中度。结论在使用新的化学品时应加强职业病防护措施,做好职业病“三级预防”工作。 Objective To understand the causes of occupational dichloroethane poisoning and provide the basis for taking corresponding health protection measures. Methods A retrospective occupational epidemiological survey method was used. As a result, a new occupational hazard led to two occupational sub-acute dichloroethane poisoning incidents in the plant, causing the poisoning of two persons, one of whom was mildly poisoned and the other a moderately severe. Conclusion In the use of new chemicals should strengthen occupational disease protection measures, occupational disease “tertiary prevention ” work.