Traditional surgery often requires a large incision to fully reveal in order to achieve the purpose of surgery, which inevitably causes artificial tissue destruction, bringing varying degrees of pain, bleeding and postoperative incision scars to patients, and even affecting functional recovery. As a representative of minimally invasive surgery, “laparoscopic surgery” is the direction of surgical development in the world today, and this technology is popular among patients and readily accepted by surgeons for its advantages of small incision, little damage, easy and quick operation, fast recovery, and little or no scar. “Our department has successfully carried out single incision laparoscopic surgery through umbilicus (SILS), which has made up the gap in Foshan and is the leading level in the province. The umbilicus is a natural orifice in embryonic period, and single-incision laparoscopic surgery via umbilical approach is a scarless abdominal wall surgery technique, which makes use of the umbilicus, a natural scar of human body, and local skin folds to cover the surgical scar, theoretically reducing incision-related complications, alleviating postoperative pain, achieving the cosmetic effect of “scarless” abdomen and avoiding NOTES. It is the most feasible surgical technique via the natural orifice at this stage because it reduces incision-related complications, reduces postoperative pain, achieves “scarless” abdominal cosmetic results and avoids the infection problems associated with NOTES via the stomach, vagina or rectum, and allows the use of conventional laparoscopic instruments. The treatment of pediatric surgical diseases – hiatal hernia (small bowel pneumonia), syringomyelia, appendicitis, cryptorchidism, varicocele, abdominal exploration, Meckel’s diverticulum resection, megacolon, etc. – with scarless laparoscopic technique is effective with fast recovery, less pain, and no scars on the abdominal wall.