There are many patients in the process of treatment, the doctor recommended to go to the intensive care medicine department for treatment, patients feel very confused, the patient seems to be okay, the sanity is clear, the disease does not seem to be as serious as the doctor said, why should be placed in the intensive care medicine department. The intensive care unit is a place to centralize the treatment of critically ill patients, reduce the investment of medical resources, improve the level of treatment, and reduce the death rate of critically ill patients. Patients who are referred to the intensive care unit usually have unstable or potentially unstable vital signs, and one or more organs or systems are involved, which are or are potentially life-threatening. In short, the intensive care unit has the most advanced equipment, such as ventilators and CRRT machines, and the most adequate medical and nursing staff ratios, with the ratio of doctors to nurses and the number of beds reaching two nurses to manage one patient and one doctor to manage one patient, which is not possible in a specialty. Therefore, the Department of Intensive Care Medicine is a place where critical patients are treated centrally with the most advanced scientific concept of critical care.