Diabetic patients’ staple food intake in 1 day should be around 250g. Diabetic diet is a reasonable and balanced diet, which determines the total calories in 1 day according to the ideal daily weight and activity level. Carbohydrates account for 55%-60% of the total calories in 1 day, that is, the daily carbohydrate intake should be about 250g for light manual workers with normal weight, and can be increased appropriately for heavy manual workers or wasted patients. The staple food intake of diabetic patients advocates eating coarse grains, which can provide dietary fiber intake, maintain laxity, and also enhance satiety and delay the rise of blood sugar after meals. However, advocating the consumption of coarse grains does not necessarily mean that it is necessary to eat coarse grains, and not all of them. The staple foods for diabetics should include rice, flour, sorghum, oats, corn and other starchy foods, and the total amount needs to be controlled for 1 day, not the intake of a certain food. However, diabetic patients should try to avoid the intake of refined processed foods during the course of eating staple foods and avoid drinking overly boiled porridge to avoid a rapid rise in blood sugar after meals.