Objective To explore the effect of bionic electrical stimulation (BES) combined with resistance tightening leg training on postpartum pelvic floor dysfunction (PFD). Methods 205 PFD patients treated in our hospital from May 2023 to June 2024 were separated into BES group [n=102, pelvic floor muscle training (PFMT) + BES intervention) and the combined group (n=103, PFMT + BES + resistance tightening leg training) by random number table method, with 8 weeks of treatment. The classification of pelvic floor muscle strength, electrophysiological indexes of pelvic floor function, urodynamics and stress urinary incontinence (SUI) classification/ pelvic organ prolapse (POP) degree were compared between the two groups before and after treatment. Results After treatment, the pelvic floor muscle strength grading, SUI grading and POP degree in the combined group were significantly better than those in BES group (P < 0.05). After treatment, ClassⅠ/ ClassⅡmuscle fiber fatigue, vaginal dynamic pressure and maximal EMG value of fast muscle in the combined group were (-1.20±0.35) %, (-0.90±0.30) %, (76.30±5.51) cmH2O, (43.00±5.82) μV, respectively, which were higher than (-2.00±0.46) %, (-1.34±0.38) %, (68.85±5.76) cmH2O and (40.17±6.03) μV in BES group (P < 0.05). After treatment, the indexes of urodynamics in both groups were significantly improved, and the combined group was better than the BES group (P < 0.05). Conclusions BES combined with resistance tightening leg training can significantly improve pelvic floor muscle strength, muscle fiber fatigue and urodynamics in PFD patients, thus alleviating SUI/POP symptoms.