In the three-hole method of hidden scar laparoscopic cholecystectomy, we have learned that: 1. It is easier to promote because only an extended grasping forceps is added to the conventional laparoscopic operating equipment (ordinary 5mm lens) without adding other special instruments. Our experience is that the gallbladder can be freed first and then ligated with a trap and then severed, or the hem-o-lok can be used to clamp the gallbladder duct first and then free the gallbladder bed. The latter method is safer and easier to learn. 3, umbilical poke hole because the gallbladder is removed from the umbilicus, so a 10mm trocar can be placed, and a 5mm lens is placed by the transducer. In the lower abdomen, only a 5mm trocar needs to be placed because only a 5mm lens and a 5mm surgical operating instrument enter. 4. Both poke holes in the lower abdomen should be punctured under direct vision of the umbilical endoscope to avoid injury to the lower abdominal intestine and small vessels of the abdominal wall. 5. The choice of the poke hole location is more important. In terms of case selection, patients with chronic or acute attacks of cholecystitis within 72 hours should be selected as far as possible, rather than atrophic cholecystitis. In conclusion, compared with the single-hole method, the three-hole method of hidden scar laparoscopic cholecystectomy is a safer, simpler, more effective and cosmetically effective hidden scar surgery of the abdominal wall.