Purpose: The purpose of this study was to investigate the effects of pelvic floor muscle exercise using electric stimulation and biofeedbackon maximum pressure of vaginal contraction, vaginal contraction duration and sexual function in women who have hadvaginal rejuvenation. Methods: The research design was a non-equivalent control group non-synchronized design study. Participantsin this study were women who had vaginal rejuvenation at C obstetrics and gynecology hospital. The 15 participants in the experimentalgroup were given pelvic floor muscle exercise using electric stimulation and biofeedback and the 15 participants in the controlgroup received self pelvic floor muscle exercise. Results: For maximum pressure of vaginal contraction, the experimental groupshowed a statistically significant increase compared to than the control group (t=5.96, p qqqlt;.001). For vaginal contraction duration,the experimental group also showed a statistically significant increase compared to the control group (t=3.23, p =.003). For women’s sexual function, the experimental group showed a significant increase when compared to the control group in total sexual functionscores (t=3.41, p =.002). Conclusion: The results indicate that pelvic floor muscle exercise with electric stimulation and biofeedbackafter vaginal rejuvenation is effective in strengthening vaginal contraction pressure, vaginal contraction and that it also positivelyfunctions to increase women’s sexual function.