目的　探讨三维超声表面成像对胎儿颜面部少见畸形的诊断方法和价值。  方法　对11300例2011年3月至2012年3月孕16～37周的产妇常规行胎儿颜面部结构的三维超声成像。  结果　全部胎儿中发现颜面部少见畸形34例，检出率为0.3%,其中包括先天性白内障3例，胎儿小眼畸形7例，无眼畸形（病理为隐眼畸形）1例，单鼻孔11例，无鼻3例，口腔寄生胎 3例，颜面部咸涎腺细胞瘤1例，外耳畸形5例，均经引产或出生后证实。  结论　三维超声能直观显示胎儿的颜面部结构，是诊断胎儿颜面部畸形的首选方法，产前进行常规的超声检查具有重要的临床意义。

Objective　To explore the value of three-dimensional ultrasonographic diagnosis on the fetal facial rarely abnormalities.　Methods　In 11300 pregnant women of 16～37 gestational weeks from March 2011 to March 2012, the fetal faces were regularly imaged by three-dimensional ultrasonography.　Results　34 cases with facial deformity were detected in all cases, with the detection rate of 0.3%. for those cases, 3 were congenital cataract, 7  microphthalmus, 11 single nostriland, 3 arrhinia,3 parasitus in oral cavity, 1 facial salivary gland cytoma,5 deformity of external ear, 1 anophthalmia. The detection results were finally confirmed by odinopoeia or birth.　Conclusions　Three-dimensional ultrasonography can directly display the fetal facial structures, and is the first choice in the diagnosis of fetal facial abnormalities. Prenatal regular ultrasound has important clinical significance.