Abstract： Objective To study the clinical features of triplet pregnancies and the factors influencing the pregnancy outcomes in order to improve the perinatal care and prevent the complications. Methods We retrospectively analyzed the maternal and neonatal complications of 198 pregnancies (32 triplets, 68 twins and 89 singleton pregnancies, with matched gestational age at delivery) that delivered after 28 weeks in our hospital from Jan. 1997 to Dec. 2006. All 32 triplets delivered between 28-37 weeks. Results The incidence of triplet pregnancies in the former 5 years (0. 05%) were similar to the later 5 years (0. 07%), P>0. 05. The rates of hypertensive disorders complicating pregnancy, hypoproteinemia and anemia in the triplets were significantly higher than in the twins and singletons (P< 0.05 ). The common neonatal complications of the triplets were hypoglycemia, wet lung and intracranial hemorrhage. The prevalence of neonatal complications showed no difference among the three groups. The perinatal mortality of the triplets were 135. 4‰,60. 2‰ in the twins, and 56. 2‰ in the singletons (P>0. 05). The cesarean section rate of the triplets and the twins were 90. 6% and 91.2% ,which were significantly higher than that of the singletons (48. 3% ), P<0. 01. The neonatal mortality rate and the incidence of neonatal respiratory distress syndrome and intracranial hemorrhage were significantly higher in the vaginal delivered babies than those of the cesarean section delivered ones in triplets (70. 6% vs 3/7, 4. 7% vs 3/7, 11.8% vs 3/7, P<0. 01 or 0. 05). Condusions Triplets pregnancies will have more maternal complications than twins and singletons without reduction of the neonatal complications and perinatal mortality rate. Preterm birth may be the main reason for the adverse outcomes in the triplets. Cesarean section can be the first choice for triplets delivery.