Most diabetic patients need to exercise to control blood sugar and slow down the progression of diabetes and chronic complications, but some diabetic patients or in some special stages are not suitable for exercise, respectively: 1, type 1 diabetes, especially “brittle diabetes” patients, due to the almost complete loss of pancreatic islet function, insulin severe deficiency. Exercise will increase blood sugar, increase lipolysis, and in the absence of insulin, cannot oxidize and decompose ketone bodies, thus increasing the risk of ketoacidosis. Such patients should not participate in exercise until their blood sugar is well controlled; 2. Those who have recently had significant fundus bleeding, retinal detachment and glaucoma should participate in exercise after their condition has been effectively controlled; 3. Those with diabetic nephropathy, protein, red blood cells and tubular type in the urine should take the initiative to reduce exercise; 4. Those with significantly elevated blood pressure greater than 170/110 mmHg should suspend exercise; 5. Those with severe arrhythmia, cardiac insufficiency, angina pectoris or myocardial infarction should suspend exercise; 6. Those with significant diabetic neuropathy, affecting the sensation and movement of the limbs and muscles must exercise under effective protection and monitoring, and those with diabetic foot must be evaluated to reduce the amount of exercise and avoid physical activity in severe cases; 7. Those with combined acute infection and liver and kidney insufficiency; 8. Those with ketone bodies in the urine Exercise is prohibited.