The process of pregnancy and childbirth inevitably causes different degrees of damage to the pelvic floor muscles, resulting in pelvic floor dysfunction, which we can often encounter in our lives: 1. involuntary leakage of urine (urinary incontinence) when coughing, sneezing, laughing, or lifting heavy objects; 2. postpartum vaginal laxity, and the couple is not satisfied with their sex life; 3. pelvic organ prolapse symptoms gradually become obvious, and finally develop to the uterus, bladder or rectum prolapse. Domestic epidemiological surveys show that, among them, more than 50% of married women will have urinary incontinence. Within 3 months after childbirth, 70.59% of women have sexual problems (painful intercourse takes the first place), and the incidence is 13.21% after 6 months after childbirth. In developed countries and regions such as Europe, America, Japan and Korea, functional assessment of pelvic floor muscles, biofeedback training and electrical stimulation therapy have been popularized, and pelvic floor muscle training is routinely performed for women 42 days after delivery, which greatly reduces the occurrence of pelvic floor dysfunctional diseases such as pelvic organ prolapse and urinary incontinence, and awakens the nerves and muscles of the pelvic floor, so that the vagina can be better restored to its prenatal size and sensitive state, thus improving the quality of sexual life. It also helps to prevent and treat the occurrence of pelvic floor disorders.