The intervention group received 12 weeks of continuous remote intervention combined with health education. The control group only received 12 weeks of continuous health education, and the content and frequency were the same as those of the management group. Both groups received instruction at the beginning of the intervention. The intervention group was given priority to continuous walking/running combined with aerobic exercise and swimming. Five to seven sessions per week for 45 minutes each session. Acclimatizations were performed at an intensity of 40%-49% reserve oxygen uptake (VO2R) from weeks 1 to 4, and exercise was performed at an intensity of 50%-59% VO2R from weeks 5 to 12. 5 minutes each of preparation and grooming activities (including joint movement and stretching) for each exercise. Combined with incremental load resistance exercise 2-3 times a week, 8 movements, 2-3 groups each time, repeated 8-10 times/group, with a 2-min rest between groups. The heart rate, RPE (12-13, "fairly easy" to "somewhat laborious") and exercise bracelet were used to monitor the intensity and amount of exercise. The exercise intervention was usually delivered 1-2 h after a meal. The daily medical supervision in the process of management implementation was carried out by trained sports managers through the doctor terminal of "exercise assistant" to collect and monitor the data of the study subjects.

Inclusion Criteria:

(1) Both gender, age from 40 to 69 years old. (2) Meeting the diagnostic criteria for type 2 diabetes in China. (3) HbA1c is within 6.5%-7 .0% and no medication is taken. (4) Newly diagnosed with diabetes or the duration of the disease is no more than 5 years. (5) Possessing general exercise capacity and no obvious diseases in the muscle and osteoarticular systems. (6) The exercise risk is evaluated as medium or low risk through the PAR-Q+ questionnaire. (7) No contraindications to exercise tests. (8) Willing to adopt intensifed lifestyle intervention and complete the entire research process.

Exclusion Criteria:

(1) T1DM patients, autoimmune diabetes and special types of diabetes, including hypercortisolism, growth hormone tumor, glucagonoma and some special types of diabetes caused by genetic factors; (2) pregnant or lactating women; (3) regular use of antidiabetic drugs or insulin in the past three months; (4) fasting blood glucose level > 16.7 mmol/L; (5) recurrent hypoglycemia; (6) a history of acute diabetic complications, including diabetic ketoacidosis, hyperosmolar hyperglycemia, and lactic acidosis; (7) a history of severe chronic microvascular or macrovascular complications; (8) diseases that may be exacerbated by exercise or impair exercise efciency, such as uncontrolled hypertension, hyperthyroidism, osteoarthritis or hypokalemia; (9) unable to use smart phones or wearable smart devices independently; (10) communication or motor dysfunction; (11) Patients with severe chronic diseases could not participate in the study.