Inclusion Criteria:  Women who are 40-75 years of age Involuntary leakage of urine during increased intra-abdominal pressure in the absence of a bladder contraction, such as coughing, sneezing, or other physical activities a 1-hour pad test exceeds 1 g no other treatments are administered for urinary incontinence currently  Exclusion Criteria:  Subject has urgency and mixed urinary Subjects with pelvic organ prolapse, pregnancy, a history of pelvic surgery, chronic respiratory diseases, urinary tract infection, cardiac pacemaker installation, metal allergy, severe needle fear, and currently taking medications for SUI or psychological disorders.