Abstract: Objective To explore the effect of different delivery modes on pelvic floor function in early postpartum period. Methods One hundred and ten parturients meeting the inclusion and exclusion criteria were included as the research subjects in our study from October 2016 to March 2017. According to the mode of delivery, they were divided into vaginal delivery group (n=77)and elective cesarean section group (n=33), and the former was divided into episiotomy group (n=47) and non-episiotomy group(n=30).The changes of pelvic floor function before and after delivery were compared among all the subjects. Results Compared with the vaginal delivery group in the elective caesarean section group, the score of rapid-contraction, mean value and score of tolerance contraction all increased after delivery in the elective caesarean section group. There was no significant difference in the peak value and rise time of rapid-contraction, the recovery time of rapid-contraction and the variability of tolerance contraction. In the vaginal delivery group, there was no significant difference in episiotomy group and non-episiotomy group. Conclusion The effect of selective cesarean section on early pelvic floor function is less than the vaginal delivery. Episiotomy can not reduce the effect of early postpartum on pelvic floor function.