Artificial respiration is a basic skill required by physicians for patients in cardiac arrest or sudden death. For patients in cardiac arrest and respiratory arrest, artificial respiration is performed in addition to chest compressions. The frequency of artificial respiration for children is 15 times/minute. Also, there will be certain requirements for the ventilation technique and the volume of ventilation. Ventilation should be performed with the nostrils pinched by hand or with the mouth wrapped around the nose and mouth for small children to avoid air leaks during ventilation. When ventilating a child, the amount of ventilation should vary according to the child’s weight. Too much ventilation may increase the pressure in the chest cavity, which may lead to an increase in abdominal pressure and the possibility of gastric reflux blocking the trachea. Too little ventilation may also result in failure to achieve resuscitation. Therefore, during resuscitation in children, in addition to the implementation of external chest compressions, ventilation with artificial respiration should be enhanced.