Stress incontinence is the overflow of urine when the abdominal pressure is increased to various degrees, and the flow of urine is terminated immediately when the pressurizing action is stopped. The general performance is: in coughing, sneezing, laughing when the urine will be unconsciously seep out, some people are in lifting heavy objects incontinence, there are also people are running to the toilet on the way pants wet ……. The survey shows that 23%-45% of the female population have different degrees of incontinence, about 7% have obvious incontinence symptoms, of which about 50% are stress incontinence. And there is a trend of youthfulness. According to the clinical symptoms, stress incontinence can be divided into three degrees: mild: general activities and no incontinence at night, occasional incontinence when the abdominal pressure increases, do not need to wear a pad. Moderate: frequent incontinence with increased abdominal pressure and standing up activities, need to wear a pad to live. Severe: Urinary incontinence occurs when standing up or lying down, seriously affecting the patient’s life and social activities. There are mainly non-surgical and surgical treatments. Non-surgical treatments mainly include pelvic floor muscle exercises and medications. The main indications for surgical treatment include: (1) Patients who have poor results from non-surgical treatment or who cannot adhere to it, cannot tolerate it, and have poor expected results. (2) Patients with moderate to severe stress urinary incontinence, which seriously affects the quality of life. (3) Patients with high quality of life requirements. (4) Patients with pelvic floor function lesions such as pelvic organ prolapse requiring pelvic floor reconstruction should undergo anti-stress urinary incontinence surgery at the same time. At present, transvaginal mid-urethral sling surgery has gradually replaced traditional open surgery, with the advantages of small injury and good efficacy, and the main modalities are TVT, TVT-O, TOT, etc. The main complications include urinary retention, urinary incontinence, and urinary incontinence. Complications include urinary retention, bladder injury, and sling erosion, but the incidence is very low.TOT has relatively fewer complications.