Patients with hepatobiliary malignancies often need to receive medium to long-term treatment plans such as systemic or conversion therapy, and they are constantly complicated with underlying diseases such as liver cirrhosis, hypersplenism or biliary tract infection, as well as complications such as jaundice and ascites, which increase the complexity and risk in the process of establishing and maintaining the vascular access. The current intravenous access guidelines cannot fully meet the clinical needs for the treatment of hepatobiliary malignancies. Therefore, Intravenous Infusion Committee of Eastern Hepatobiliary Surgery Hospital organized multiple discussions among multidisciplinary experts of the Consensus Committee and formulated the "Expert consensus on the selection and use of medium to long-term vascular access in patients with hepatobiliary malignancies", aiming to standardize the full-process management of the selection, implantation, use and maintenance of medium to long-term vascular access for hepatobiliary malignancies, and to improve the safety of treatment and the quality of life of patients.