Abstract:How to carry out standardized endoscopic diagnosis and treatment of biliary fistula to ensure a good prognosis of patients is the focus of more and more endoscopists. But there is no clear guideline and expert consensus on pathogeny, diagnosis and treatment of biliary fistula. Chinese Society of Digestive Endoscopology and Chinese Endoscopist Association organized domestic experts in relevant fields to refer to the latest research progress and formulate this consensus based on collective discussion and voting. The consensus includes 13 recommendation statements for the causes, diagnosis, grading and typing and treatment of biliary fistula.