This study aimed to evaluate the therapeutic effects of Low intensity extracorporeal low energy shock wave therapy (LiESWT) on stress urinary incontinence (SUI). The investigation was a single-arm, openlabel, multicentre study conducted in Taiwan. 50 female patients with SUI received LiESWT-treated with 0.25 mJ/mm 2 intensity, 3000 pulses, and 3 pulses/second, once weekly for 4-weeks (W4) and 8-weeks (W8). The pad test, uroflowmetry, life quality questionnaires, and 3-day urinary diary measurement were performed before and after LiESWT intervention. The results revealed that 8-week of LiESWT treatment meaningfully improved urine leakage (pad test), maximum flow rate, post-voided residual urine, average urine volume, functional bladder capacity, urinary frequency, urgency symptom, and nocturia, which also persisted to show significant improvements at 1-month follow up (F1). Moreover, bothersome questionnaires scores were significantly improved at W4, W8, and F1 as compared to the baseline (W0). These results indicated that 8 weeks of LiESWT attenuated SUI symptoms on physical activity, reduced bladder leaks and overactive bladder (OAB), implying that LiESWT brought significant improvement in the quality of life. (ClinicalTrials.gov number, NCT04059133). Stress urinary incontinence (SUI) is a prevalent urologic problem that is characterized by involuntary leakage of urine upon physical activity, such as exercise, exertion, sneezing, coughing, and lifting heavy objects, leading to affect a woman's physical, psychological and social activity, and impact on her quality of life (QoL). SUI is a prevalent gyneco-urological problem worldwide, with an estimate as high as 40% in adult women with urethral sphincter deficiency 1,2. Vaginal delivery, aging, obesity, and menopause are some known risk factors. SUI also causes great psychosocial and sexual distress that is both costly in terms of health care expense and the QoL. Chong and colleagues reported that approximately 13.12 billion US dollars were spent on SUI, including sanitary pads, disposable underwear, diapers, laundry, dry cleaning, treatment and diagnosis 3. A spectrum of management modalities is currently available: lifestyle intervention and pelvic floor muscle training might be effective for mild symptom; electro-stimulation, vaginal devices and urethral inserts are non-invasive and temporary symptom-control methods; bulking agents and botulinum injections are less invasive with short-term effectiveness; mid-urethral slings and colposuspension are corrective with long-term effectiveness 4. Each of these methods has its strengths and limitations that should be chosen according to individual