Asymptomatic intrahepatic bile duct stones are usually left untreated, while surgery is recommended for recurrent cholangitis. Intrahepatic bile duct stones are stones in the bile ducts above the confluence of the right and left hepatic ducts. The causes of the disease are mostly related to biliary parasites, biliary tract infections, bile stasis, etc., and the incidence of the disease is more frequent on the left side than on the right side. The treatment of intrahepatic bile duct stones is related to the occurrence of symptoms and bile duct dilatation. The disease can cause cholangitis, bile duct dilatation, bile duct stenosis and liver atrophy. For asymptomatic stones, no treatment is needed; for cases of recurrent cholangitis caused by stones, surgical treatment is recommended, and the principles of surgery are: removing the stone, removing the lesion, clearing the drainage, and preventing recurrence. Patients with intrahepatic bile duct stones should go to the hospital in time and follow the doctor’s advice to choose the appropriate treatment.