Objective: To investigate the pelvic floor function in patients with cesarean section and natural delivery at 6 to 8 weeks postpartum, and to analyze its influencing factors.Methods:? A total of 80 women who gave birth in Nankang Maternal and Child Health Hospital of Ganzhou City from September 2023 to August 2024 were selected and divided into natural delivery group (n=56) and cesarean section group (n=24) according to delivery mode. The outcomes of delivery and pelvic floor function at 6-8 weeks postpartum were compared. According to the pelvic floor function, they were divided into normal group (n=48) and abnormal group (n=32), and the influencing factors were analyzed.Results:? 2h postpartum blood loss, class Ⅰ and class Ⅱ muscle strength of pelvic floor in natural delivery group were significantly lower than those in cesarean section group, and total labor duration was significantly higher than that in cesarean section group (P < 0.05). There were significant differences between normal group and abnormal group in age, diabetes mellitus, hypertension, constipation, time of delivery, mode of delivery, increase of BMI during pregnancy, fetal weight and 24h postpartum blood loss (P < 0.05). The results of multivariate analysis showed that age ≥35 years old, constipation, natural delivery mode, BMI increase ≥10kg/m2 during pregnancy, and fetal weight ≥3500g were independent risk factors for pelvic floor dysfunction at 6-8 weeks postpartum (P < 0.05).Conclusion:? Cesarean section and natural delivery have significant effects on pelvic floor function at 6~8 weeks postpartum, which should be paid more attention to.