For people with diabetes mellitus, it is recommended to control blood pressure below 130/80 mmHg, especially for people with diabetes mellitus who develop diabetic nephropathy and diabetic cardiomyopathy at a later stage. 130/80 mmHg is a good blood pressure control range, which can effectively prevent further deterioration of kidney function and prevent further cardiomyopathy. This can effectively prevent further deterioration of kidney function and prevent further heart muscle lesions. People with hypertension combined with diabetes must actively control blood sugar, because if blood sugar control is poor and hypertension exists, it may eventually lead to atherosclerosis, abnormal kidney function, cardiomyopathy, and lesions of the fundus, and these complications have an impact on the patient’s quality of life and life expectancy. For people with diabetes, it is important to try to keep blood sugar within the normal range.