Abstract: Objective To compare the effect of different laboring methods on primipara pelvic floor function in early postpartum period, and to seek the most beneficial way of laboring.Methods From June 2015 to February 2016, primipara were selected who would deliver in the Third Affiliated Hospital of Zhengzhou University. According to the principle of informed consent and voluntary, the primipara were divided into laboring in water group 69 cases, traditional laboring group 95 cases and epidural anesthesia laboring group 75 cases, related information was collected and analyzed, such as the duration of labor undergoing vaginal delivery, episiotomy and perineal laceration, blood loss after delivery 2 hours, infant Apgar score with 1 minute and 5 minutes, stress urinary incontinence (SUI) during pregnancy and at 42 days after delivery, pelvic organ prolapse (POP-Q) and pelvic floor electrical physiological.Results (1) compared with traditional group, the water group can reduces the rate of cesarean delivery, episiotomy, SUI at 42 days after delivery (P < 0.017); Only Aa indicator point up in POP-Q score and the difference was statistically significant between the two groups (P < 0.017). (2) compared with drug group, the water group had shortened the first and second stage of laboring, reduced the rate of episiotomy, and increased the ratio of type I and type II muscle strength account for ≥ grade III (P < 0.017); Only Aa indicator point up in POP-Q score, and the difference was statistically significant (P < 0.017). (3) Compared with traditional group, drug group extended the time of the second stage of laboring, (P < 0.017).Conclusion Primipara laboring in water could reduce the rate of cesarean section, episiotomy and SUI 42 days after birth. Primipara who laboring in water had light level in postpartum pelvic floor electrophysiological index injury, pelvic organ prolapsed. Laboring in water may have a protective effect on the pelvic floor function.