Symptoms of heat stroke such as sweating shutdown, dizziness and headache, and mental disturbance often occur when body temperature exceeds 39 degrees Celsius or 40 degrees Celsius, and respiratory failure can occur within a few hours in severe cases. Diabetic peripheral neuropathy in the elderly is also a common cause of the sweating phenomenon, elderly patients with diabetic peripheral neuropathy pay attention to diet and health care, to prevent and alleviate the disease are very good effect. Elderly diabetic patients have their special physiological and pathological characteristics, and their dietary control is different from that of middle-aged people. The purpose of dietary treatment is still to lower blood glucose, blood lipids, blood pressure and maintain normal weight, but its arrangement method is different. Elderly people have poor tolerance to hypoglycemia and are very prone to hypoglycemic reactions, so dietary control should not be too strict. For patients with poor gastrointestinal digestive function, they should be encouraged to eat, and small and multiple meals can be used. Elderly diabetic patients mostly have heart, brain, liver and kidney damage, so it is advisable to eat a light diet, less fatty, sweet and thick taste, low fat, low salt, and abstain from alcohol. Due to kidney damage, protein loss is significantly increased compared to middle-aged people, and because of poor digestive function, the absorption of trace elements is insufficient, so it is common to see elderly patients with osteoporosis, muscle atrophy, poor resistance, and often easy to combine infection. Fractures, etc., so the need to increase protein, especially high-quality protein supplementation. Elderly patients are less obese, dietary control to reduce weight should not be too strict, the goal is basically close to the standard weight, can not focus on weight loss resulting in malnutrition, resulting in fatigue and weakness, dizziness, panic attacks, affecting the patient’s confidence to adhere to diet therapy.