Artificial respiration is mainly performed by blowing, the main purpose is to carry out timely rescue to promote the recovery of the heart, breathing and other functions. The rescued person is mostly caused by major trauma, acute poisoning, drowning, electric shock and other sudden causes of respiratory arrest, cardiac arrest, blowing through the mouth can be blown out of the gas in the oxygen into the lungs, make the lungs expand, to avoid patients due to a lack of oxygen leading to organ damage, asphyxiation, and other circumstances occur. Artificial respiration is one of the steps of cardiopulmonary resuscitation (CPR), clinically commonly used mouth-to-mouth artificial respiration, mouth-to-nose artificial respiration is often used for patients with severe oral injuries, or teeth closed, and mouth-to-mouth artificial respiration is often used for infants and young children. When encountering an emergency situation, the first thing you need to do is to determine whether the patient is conscious, if you can’t give a response, and breathing, heartbeat pause, this time for the loss of consciousness, you need to carry out artificial respiration as well as other first aid measures in a timely manner, and promptly call 120 emergency telephone. Because wrong artificial respiration may aggravate the symptoms of the rescued person, it is recommended that people with first aid qualifications or professional training carry out first aid. Before performing artificial respiration, it is necessary to remove foreign objects from the patient’s mouth and nose first, and then open the airway. Different methods of opening the airway can be adopted for different patients, such as tilting the head and lifting the chin, tilting the head and lifting the neck, and lifting both jaws. The patient’s chest needs to be observed for elevation during blowing to ensure that the gas is blown into the lungs, that the patient has a chest rise and fall, and that gas can be heard or felt escaping during blowing. Artificial respiration needs to be accompanied by chest compressions to promote the recovery of cardiopulmonary activity and reduce organic damage.