Cardiopulmonary resuscitation (CPR) is a common first aid measure nowadays, which is widely used in daily life and clinic. It is to establish temporary artificial circulation through heart compression and artificial respiration to ensure the blood supply of important organs in the body, and at the same time to stimulate the organism to produce autonomous heartbeat and respiration, so as to save the patient’s life. First, such as drowning, suddenly fainted patients, should shout patients, quickly determine the patient’s breathing, there is no aortic pulsation, if not, immediately give cardiac compression, clear the respiratory tract of foreign bodies, to buy time for the patient; Second, if it is in the hospital patients suddenly found cardiac arrest, should be timely cardiac compression at the same time as soon as possible to open the venous access, cardiopulmonary resuscitation at the same time to give the emergency drug therapy. Note that cardiopulmonary resuscitation is very common in daily life, and you should pay attention to the compression site, compression frequency, compression force, etc., to avoid incorrect compression caused by sternum fracture or can not achieve the effect of compression. Cardiopulmonary resuscitation (CPR) is a basic operation that everyone should be able to perform.