Biliary infection in children includes acute and chronic cholecystitis and cholangitis.The main dinical manifestations of acute cholecystitis are right upper-quadrant abdominal pain which is persistent with nausea and vomiting,Murphy's sign positive.Some of patients have high fever,chills,jaundice,and some severe patients have coma.Acute cholangitis has rapid onset.The most common manifestations are abdominal pain,fever,chills and jaundice which are known as Charcot's triad.A few children's main manifestation is septic shock which has a high mortality.This article described the diagnosis and treatment of biliary inflammation in children.