Objective To study the influences of fetal umbilical cord around neck on foetus、newborn infants and the choices of delivery mode during delivery.Methods 220 cases of cephalic delivery pregnant women with fetus who had fetal umbilical cord around neck symptom and 220 cases of cephalic delivery pregnant women with fetus who didn't have fetal umbilical cord around neck symptom,were selected to make a contrast observation.Results The foetus who had fetal umbilical cord around neck symptom had higher rate of fetal distress and neonatal asphyxia.The maternal cesarean section would be much higher,too.The rate is 18.5％,8.6％,49.6％ which were higher than the foetus who didn't have such kind of symptom,the rate is 5.4％,1.8 ％,26.4％ ( all P ＜ 0.05 ).The rate of fetal distress and neonatal asphyxia was proportional to the number of circles around neck.One circle around neck is 12.6％,1.4％ ;two circles around neck is 27.1％,17.0％ ;three and more than 3 circles around neck is 69.2％,53.8％.Conclusion We should enhance perinatal B-mode ultrasonic examination and fetal monitoring circle around neck,pay close attention to the factor of umbilical cord around neck and select suitable delivery mode so that we can reduce the incidence of fetal distress and neonatal asphyxia.When B-mode ultrasonics displays that the number of the umbilical cord around the fetus' neck is three and more than 3 circles,the incidence of neonatal asphyxia is high and the cesarean section is the best choice under such circumstances.