After a person is electrocuted is most likely to be through the current leading to acute cardiac arrest, to remove the scene of the power supply, to determine the patient’s heartbeat, respiration has not stopped, usually touch the patient’s neck next to the vein artery, and to observe the patient’s thorax there is no rise and fall. If both are not the case, on behalf of respiratory and cardiac arrest, should be immediately given on-site cardiopulmonary resuscitation, usually alternating between chest compressions and artificial respiration, while doing cardiopulmonary resuscitation at the same time immediately call 120, requesting medical personnel to come to the rescue. If the patient’s respiratory heartbeat still exists, but only appears to be unconscious, you can turn the head to the side, to prevent vomiting accidental inhalation. If there is a wound on the body, you can give a clean dressing to dress the wound and wait for the ambulance to come to help.