A pre-exercise assessment should be performed before exercise therapy for diabetes. The first thing that should be estimated is the amount of activity in real life. As each person is in a different environment, the amount of activity varies. If the patient is asked to bring a pedometer as a standard, the amount of activity is less than 2000 steps/day for those with too little activity, 2000 steps/day-10000 steps/day for those with moderate activity, and >10000 steps/day for those with more. It is inappropriate to let diabetic patients whose daily activity is below 2000 steps suddenly increase to 10000 steps/day. In addition to blood glucose, blood lipids, blood pressure and body weight, medical examinations should be performed, including liver and kidney function, blood and urine ketone bodies, electrocardiogram (if necessary, exercise stress test), chest X-ray, fundus examination, urine protein quantification, bone and joint system and peripheral blood vessels (such as lower limb arteries) to exclude serious heart and lung diseases and to understand chronic complications and their severity. For patients who are suitable for exercise therapy should also pay attention to the following matters. 1, the arrangement of the activity time: the general morning temperature is low, which is the human body sympathetic nerve excitability is stronger, and diabetes patients have more or less accompanied by varying degrees of cardiovascular disease, cold air stimulation is easy to trigger, resulting in sudden onset, in addition, early in the morning most patients are accustomed to fasting exercise, which is also very easy to induce hypoglycemia, and even cause hypoglycemic coma. For diabetic patients, it is best to exercise 1-2 hours after a meal. Because the patient’s blood sugar level is more stable, plus the food in the stomach is also digested most of the time, compared with the immediate after-meal exercise, but also less likely to hurt the gastrointestinal. Especially after breakfast, is the best time to exercise, because this is probably the highest blood sugar time of the day, when exercise often does not have to add meals. It should be noted that patients should not exercise at the time of the strongest effect of insulin or oral hypoglycemic drugs, otherwise it may lead to hypoglycemia. 2, the amount of momentum and duration of activities, in order to gradually appropriate, starting with a lighter amount of activity, and then gradually increase the amount of exercise after adaptation, to extend the duration of exercise, do not be too hasty, so as to avoid accidents, exercise should be persistent. It is best to adhere to daily, at least not less than 3 days a week. 3, the form of exercise should be oxygen-consuming (light resistance exercise, such as walking, cycling, jogging, tai chi, up and down the stairs, climbing, swimming, etc.), rather than isometric (such as weight lifting, etc.). 4, take the way of exercise should be combined with the patient’s condition, physical condition, habits and hobbies, and also according to the housing conditions, the surrounding environment, choose a suitable for the patient’s physical condition and convenient to be able to adhere to long-term way. 5. Exercise therapy should be carried out around 1 hour after meals to avoid hypoglycemia. When going out for exercise, carry candy with you in case of hypoglycemia. At the same time, you should carry a disease certificate card and a rescue card so that you can be rescued in time in case of an accident. 6. Pay attention to the self-perception during and after exercise. If there is difficulty in breathing, pressure in the chest area, arrhythmia, headache, dizziness, pallor and cyanosis, etc., stop exercising immediately. 7, uncontrolled diabetes patients, pay attention to prevent hyperglycemia and ketosis. The heat is prone to dehydration, which aggravates the condition, so attention should be paid. Diabetic patients with active proliferative retinopathy should not participate in strenuous activities straight away in order to prevent intraocular hemorrhage. Diabetic patients with peripheral neuritis have insensitive foot sensation and should avoid walking exercise, while the patient’s nerve endings should be protected from injury. 8. During exercise therapy, blood glucose and lipids should be checked regularly in order to understand the efficacy and adjust the dose of medication, as exercise can reduce the need for hypoglycemic medication and avoid hypoglycemia. For most diabetic patients, exercise therapy should be carried out under the guidance of a specialist, and the mode, intensity and duration of exercise should be decided according to the patient’s physical conditions, such as age, gender, disease, general condition and other differences.