Recently, several consecutive cases of mid-urethral sling surgery were done to treat female stress urinary incontinence, which is a simple procedure with minimal trauma, quick recovery and excellent post-operative results. ps: Stress urinary incontinence refers to involuntary urine leakage from the external urethral opening when increased abdominal pressure is caused by sneezing, laughing, extracting heavy objects, etc. Serious patients experience urinary incontinence when walking long distances or even as long as they are standing. It is also known as ‘social cancer’ because the patient often smells like urine and is reluctant to interact with others. The disease is most common in women, especially those who have more children and those of advanced age. The incidence of urinary incontinence increases with age due to relaxation of the pelvic floor muscles, estrogen deficiency and degenerative changes in the urethral sphincter; the incidence of urinary incontinence is also higher in mothers who have had more children, a history of difficult deliveries and large fetuses; in addition, the disease is also related to obesity and constipation. Mild, moderate can first choose drug treatment and pelvic floor muscle exercise and other conservative treatment methods; if conservative treatment does not work can choose surgery, the above-mentioned surgical approach is the preferred surgical approach, with good long-term results.