The average life expectancy of type 2 diabetic patients in China is about 70 years. Diabetes is a metabolic disease characterized by high blood glucose, often due to insufficient insulin secretion in the patient’s body, or insulin cannot be fully utilized, resulting in a constant rise in blood glucose in the body, and the body is in a long-term hyperglycemic state, causing various other complications. Diabetes itself is not life-threatening, but causes a series of complications that are more harmful to the human body, such as common complications of diabetes, including liver disease, kidney disease, uremia, cardiovascular disease, hypertension, etc. These complications can endanger the lives of patients, but if early diabetic patients have better blood sugar control and reduce complications, the impact on life expectancy is actually not significant. Diet with more intake of high fiber food, high protein, low calorie and low sugar food, and usually more exercise to increase body metabolism, improve their immunity, and maintain a positive and optimistic mood will all be beneficial to diabetic patients’ disease control.