The application and value of percutaneous pancreatic puncture: a. It can be used to obtain tissue or cells of the pancreatic mass for pathological or cytological diagnosis. This technique is of great value in clarifying the nature of the “pancreatic mass” and is important in deciding whether and how to treat it. Secondly, to perform puncture and drainage treatment of localized fluid and pseudocysts after acute pancreatitis. Third, to perform treatment such as ion implantation for malignant tumors of the pancreas. However, it is technically demanding, difficult to operate and risky.