Cardiopulmonary resuscitation is a commonly used first aid measure, which is widely used in daily life and in clinical practice. It is a way to establish temporary artificial circulation through cardiac compressions and artificial respiration to ensure blood supply to the vital organs of the body, while stimulating the body to produce voluntary heartbeat and respiration, thus saving the patient’s life. First, such as drowning, sudden fainting patients, should call out to the patient, quickly determine the patient’s breathing, the presence of aortic pulsation, if not, immediately give cardiac compressions, clear the airway foreign body, to buy time for the patient; Second, if the patient is suddenly found in the hospital cardiac arrest, should be timely cardiac compressions at the same time as soon as possible to open intravenous access, cardiopulmonary resuscitation at the same time to give emergency drug therapy. Note that cardiopulmonary resuscitation is very common in daily life, when compressions should pay attention to the compression site, the frequency of compressions, compression strength, etc., to avoid incorrect compressions cause sternal fractures or fail to achieve the effect of compressions. CPR is a basic operation that everyone should be able to perform.