Pathological narcolepsy is a mild disorder of consciousness. It is not easy to determine the cause of narcolepsy in the elderly, so we cannot decide how long we can live by evaluating the symptoms of narcolepsy alone. Narcolepsy is a symptom of many diseases, and the survival time varies with different causes. First of all, we should pay attention to whether the elderly have little food, wasting, malnutrition, etc. We should also pay attention to the elderly who have been taking certain drugs for a long time, we should find out the type of drugs and drug dose, whether there is any leakage or overdose. Also monitor the patient for blood pressure, blood sugar and other underlying conditions, such as insufficient blood supply to the vertebrobasilar artery leading to drowsiness. If it progresses to vertebrobasilar artery thrombosis, it can lead to acute cerebrovascular disease, which may lead to death within days or even hours. Attention should also be paid to the presence of psychosomatic aspects of the patient, such as depression. Detailed examination should be performed for narcolepsy in the elderly to see if there are pathological factors, and treatment based on etiology is recommended to get rid of the cause.