Complications of chest cardiac compressions include rib fractures, pericardial hemorrhage or cardiac compressions, pneumothorax, hemothorax, pulmonary contusions, liver and spleen lacerations, and fat embolism. Therefore, when doing artificial heart compressions, the correct method of operation should be followed. The first part is in the lower part of the sternum, between the double nipples, with the root of the palm of one hand on the sternum right in the middle of the sternum, between the double nipples, and the other hand overlapping parallel on the back of the hand to ensure that the horizontal axis of the root of the palm is in the same direction as the long axis of the sternum. Ensure that the palm of the hand is pressed hard on the sternum so that rib fractures can be avoided, and do not press on the glabella; press with the elbow joint straight and rely on the strength of the shoulder and back to press vertically downward. The amplitude of pressing the sternum is 3-5 cm, and after pressing the sternum to restore the original position, the time of pressing and relaxing is approximately equal, and the hands should not leave the chest wall when relaxing, and there should be less interruptions in extra-thoracic compressions, and try not to exceed ten seconds.