Clinically, exercise in diabetic patients is one of the important glucose-lowering measures. The fastest heart rate of exercise in diabetic patients depends on the patient’s condition. For first-onset type 2 diabetic patients without cardiovascular disease, it is required to strengthen exercise and exercise, reduce body weight and increase body resistance, and the fastest heart rate is required to reach 170 beats/min minus age. For elderly diabetic patients with cardiovascular disease, exercise should not be too much to avoid cardiovascular disease accidents. For diabetic patients with combined diabetic retinopathy and diabetic nephropathy, the amount of exercise should not be too much to avoid aggravating the progress of chronic complications, which is not conducive to the control of the patient’s condition.