Diabetes is prone to various acute and chronic complications, such as diabetic ketoacidosis, diabetic nephropathy, diabetic foot, diabetic fundopathy, etc., which seriously affect the quality of life of patients and even shorten their life expectancy. It is important to actively control blood sugar to prevent or delay the onset and development of diabetes. 1. control diet is the basis, low salt, low fat, low sugar diet, avoid overeating, eat more vegetables, staple food to coarse grains mainly; 2. more exercise after meals, avoid strenuous exercise. Fast walking and jogging are the best exercises for diabetes, and should be persistent; 3. Receive diabetes health education, understand diabetes correctly, and face it positively with a good attitude; 4. Review blood sugar regularly; 5. Use medication reasonably.