Postpartum separation of rectus abdominis is a normal physiological phenomenon. If it is between 1-3 fingers, it can be diagnosed as pathological rectus abdominis separation. In this case, there will be clinical symptoms such as low back pain, heterotopia of pelvic and abdominal organs, abdominal wall relaxation, etc., and active rehabilitation training is needed to achieve the purpose of rehabilitation. The rectus abdominis is usually separated in three fingers. After active rehabilitation training, she recovered completely within six months to one year. If the rectus abdominis is separated by more than 3 fingers, conservative treatment in this case is often ineffective, and there may be sequelae such as abdominal organ heterotopia, abdominal wall relaxation, waist and abdomen pain, body deformation and aesthetic impact. This requires surgical treatment and rehabilitation, that is, rectus abdominis repair surgery.