Background: Nowadays, with the improvement of mordern techniques and equipments, surgeons have more new methods for diagnosis and treatment of intrahepatic stones, such as laparoscopic choledochotomy, endoscopic retrograde cholangioscopy (ERCP), stone removal via T tube, percutaneous transhepatic cholangioscopy, electrohydraulic lithotripsy (EHL)... However, every method has other benefits and indications.