Acute pancreatitis is a common critical disease of the digestive system,and the update of relevant guidelines has important guiding significance in clinical practice. Based on the expert opinions in multiple disciplines,as well as clinical evidence at home and abroad in the past 5 years,this consensus,comprised of 30 statements,further specifies the classification,etiology,and diagnosis and treatment of acute pancreatitis,and the relevant statements are more clinically instructive. It is expected to further standardize the clinical diagnosis and treatment of acute pancreatitis in China.