Pediatric mini-laparoscopic surgery is an advanced minimally invasive surgical technique. This procedure requires only a few small 0.3cm or 0.5cm holes in the abdominal wall to complete complex laparotomy. Because of the magnifying effect of laparoscopy, the operation field is clearer and easier to operate, even hidden abdominal diseases can be fully revealed, which is an advanced surgical method for both diagnosis and treatment. Compared with conventional “open” surgery, it has obvious superiority. Because the damage is minimal, the disturbance to the abdominal organs is small, the recovery is fast, the complications are few, and the hospital stay is short. There is no incision scar on the abdominal wall after surgery, which is very beautiful. More importantly, the incision scar is avoided, which has adverse effects on the heart of children in the developmental stage, and is welcomed by the majority of children and their families. With the progress of society and the improvement of living standards, people’s demand for disease treatment is not only for cure, but also for minimal damage and perfection of the body. Nowadays, laparoscopic surgery has become a routine operation, and 80% of abdominal diseases can be treated by laparoscopy. For example, laparoscopic treatment of hernia, syringomyelia, appendicitis, cryptorchidism. Laparoscopic treatment of congenital hypertrophic pyloric stenosis, congenital intestinal diverticulum, congenital intestinal atresia, congenital anal atresia and many other diseases. The laparoscopic surgery is accepted by more and more parents because of its characteristics such as less injury, faster recovery, shorter hospital stay, less complications, no obvious incision scar on the abdominal wall, and aesthetic appearance.