Before vaccination for the elderly, it is necessary to determine whether there is any underlying disease, such as whether there is a history of vaccination allergy, whether there is a chronic disease, whether there is an acute disease, etc.; it is necessary to know the general knowledge of vaccination in advance, and it is necessary to stay for observation after vaccination. 1. Any history of vaccine allergy: if the elderly have a history of vaccine allergy, try to avoid vaccination, so as to avoid an allergic reaction, which may jeopardize the life of the person. 2. Any chronic disease: if the elderly have serious chronic diseases, or acute exacerbation of chronic diseases, such as uremia, heart failure, chronic renal failure, acute exacerbation of chronic obstructive pulmonary disease, respiratory failure, tumors and other diseases, can not be vaccinated to avoid aggravation of the disease. 3. With or without acute diseases: if the elderly have acute diseases, such as fever, acute gastroenteritis, allergic urticaria and other diseases, can not be vaccinated. 4. Know the general knowledge of vaccination in advance: the elderly need to know the vaccination process and general knowledge of vaccination in advance, the appointment can save the elderly waiting time on the spot, to avoid tension and fatigue. If necessary, family members should accompany the elderly for vaccination. Finally, the elderly need to stay for 30 minutes after vaccination. If any discomfort occurs, consult a doctor promptly.