In this hospital, the way of fixing an endotracheal tube is as follows.We use two tapes. At first we put the tube to one side of the mouth, then, put one tape on one side of the cheek, then, pull this tape around the upper-side of the tube, and pass it under the nose, and put onto the other side of the cheek. The second tape, we put on the cheek (opposite side to the first tape), and make this tape go around the lower side of the tube, pass under the nose, and then attach to the cheek. However, the incidence of extubation was high. The reason was not only caused by the fixed tape, but also by the fixed respiratory organs, and the fixed implement of a child's head. Also, there were children who had used respiratory organs for a long term, so that they had had endotracheal tubes for a long time. They were sometimes offended by headgear which was good for keeping child's head stationary, but it led to the child's frustration. Also we need to put the respiratory organ in good place, otherwise, it pulled off the tube. The point was the positioning of children, which we should change along their growth path. We were able to prevent the extubation in two respects: you could make free space for respiratory organs moving, and lower the children's frustrations.