Abstract: China is among the countries with a high incidence of cholangiocarcinoma (CCA),and its incidence has been increasing annually.CCA arising at different anatomical sites presents distinct clinical features and requires differentiated diagnostic and therapeutic approaches.In 2015,the Chinese Chapter of the International Hepato-Pancreato-Biliary Association and the Hepatic Surgery Group of Surgical Branch of Chinese Medical Association jointly developed the "Diagnosis and treatment of cholangiocarcinoma:surgical expert consensus".Over the past decade,substantial progress has been made in the diagnosis and management of CCA.To better guide clinicians in addressing the challenges of CCA,the Chinese Chapter of the International Hepato-Pancreato-Biliary Association and the Hepatic Surgery Group of Surgical Branch of Chinese Medical Association convened a multidisciplinary committee of experts to revise and update the 2015 consensus,resulting in the present guideline.

Key words: cholangiocarcinoma；diagnosis；therapy；expert consensus