After balloon dilatation for pancreatic achalasia, patients need to pay attention to the postoperative diet, including the following aspects: 1, first fasting for 24 hours, water can be drunk for 6-8 hours after the operation; after 24 hours, liquid diet can be carried out; generally, after 2-3 days, the transition from the liquid diet to the solid diet; after 3 days, the normal diet can be carried out; 2, warm boiled water can be drunk for 4-6 hours after balloon dilatation, and it should not be too hot and too cold drinks, the liquid diet is generally thin gruel and soup, and the semi-liquid or solid diet can be powdered flour and noodles, or even soft rice, so as to avoid eating rough food.