Pelvic floor muscle training (PFMT) and pessaries are first-line non-surgical conservative treatments for pelvic organ prolapse (POP). High-Intensity Focused Electromagnetic Field (HIFEM) is a noninvasive and painless device, designed to promote muscle strengthening and growth and has become a popular treatment option for urinary incontinence in the field of gynecology. However, HIFEM has not yet been rigorously compared to traditional physical therapy for POP. The objectives of this pilot study are to explore clinical effects of HIFEM on POP symptoms; to compare the effectiveness of HIFEM versus PFMT with biofeedback, and usual care on patient-centered outcomes; and to explore the acceptability of the interventions. This is a prospective, single-center randomized controlled trial with a nested qualitative interview study. Twenty-one women with POP, aged \>20 years, will be recruited and randomly allocated to three groups, 'HIFEM' group, 'Biofeedback' group, and 'Usual care' group.The 'HIFEM' group will be asked to sit straight in the center of an electromagnetic chair and remained fully clothed for 28 minutes. The 'Biofeedback' group will receive PFMT with biofeedback and/or electrostimulation. Both 'HIFEM' and 'Biofeedback' groups will receive the interventions twice a week for 8 weeks. Participants allocated to the 'Usual care' group will receive the lifestyle advice leaflet only. All participants will be assessed for pelvic floor muscle function, symptom severity of POP, occurrence and distress related to pelvic floor dysfunction, and impact of pelvic floor dysfunction at baseline and immediately post-intervention.