Abstract: Objective To explore the preventive effect of prenatal pelvic floor exercise and postpartum Juyuan Decoction granule on postpartum pelvic floor disorders(PFD). Methods From January 2016 to May 2018, 412 pregnant and parturient women who underwent birth examination in our hospital were selected as the main subjects. The women were divide into control group(n=206, take antenatal pelvic floor exercise) and the experimental group(n=206, on the basis of the control group, administrating additional Juyuan Decoction granule after the delivery) according to random number table method. After 4 weeks of treatment, the pelvic floor function such as pelvic floor electromyography, vagina dynamic pressure, vaginal continuous contraction time and pelvic floor muscle tension were observed and compared between the two groups. The TCM qi deficiency and the improvement of stress urinary incontinence were compared before and after treatment. Results The values of pelvic floor electromyography, the dynamic pressure of vagina, the duration of vaginal contraction and the tension of pelvic floor muscle were significantly improved after the treatment(all P<0.01). However, the improvement of pelvic floor function in the experimental group was significantly better than that in the control group(all P<0.01). The scores of TCM syndromes and urinary incontinence in the two groups were significantly lower than those before the treatment(all P<0.01). The scores of fatigue, shortness of breath, self-sweating, total score and urinary incontinence in the experimental group were significantly lower than those in the control group(all P<0.01). Conclusion Prenatal pelvic floor exercise combined with postpartum JuYuan Decoction granule can effectively improve the pelvic floor function and urinary incontinence symptoms of pregnant and parturient women. It has good effect on prevention and treatment of PFD, and has clinical application value.