We experienced a case of trisomy 16 discovered with missed abortion in pregnancy achievedby IVF-ET. Spontaneous abortion rate after IVF-ET was higher than normal pregnancy. Chro-mosome anomalies had been reported in spontaneous abortions after IVF-ET. We had attempted to karyotype which miscarriged gestational 8 weeks, and the result was found trisomy 16.So we reported the case with a brief review of literatures.