Chronic pancreatitis is clinically manifested as recurrent or persistent abdominal pain, diet should pay attention to the following aspects: 1. prohibit alcohol, quit smoking, eat fewer meals, high-fiber diet, avoid excessive high-fat, high-protein diet, control sugar intake; 2. long-term chronic pancreatitis is mostly accompanied by malnutrition, parenteral or enteral nutritional support can be given systematically; 3. patients with dyspepsia and diarrhea should be given a large amount of exogenous pancreatic enzyme preparations, supplement fat-soluble vitamins and vitamin B12, folic acid, appropriate supplementation of a variety of trace elements.