目的探讨超声在早期妊娠中诊断胎儿联体双胎的临床价值。方法选择2013年1月-2016年8月近3年中,在本地区五家医院发现的早孕期联体双胎6例,进行总结分析。结果 6例联体双胎,均为胸腹联体双胎,其中1例系死胎。结论双胎妊娠特别是单绒毛膜、单羊膜囊双胎,更应高度警惕联体双胎及双胎之一畸形,尤其对应用辅助生育技术后及孕前服用促卵泡药物怀孕的妊娠也须引起重视,超声是目前诊断早孕期发生的联体双胎畸形的首选最佳方法。 Objective To investigate the clinical value of ultrasound in the diagnosis of fetus twin in early pregnancy. Methods From January 2013 to August 2016, 6 cases of conjoined twins in early pregnancy found in 5 hospitals in the region during the past 3 years were analyzed. Results 6 cases of conjoined twins, both of the thoraco-abdominal twins, of which 1 case of stillbirth. Conclusions Twin pregnancies, especially single chorionic and single amniotic sac twins, should be highly vigilant on one of the twin and twins associated with deformities. In particular, pregnancy after taking assisted reproductive techniques and taking follicle stimulating drugs before pregnancy should also be caused Attention, ultrasound is currently the best method of diagnosis of conjoint twin deformities occurred in early pregnancy.