The normal range of oxygen saturation in plateau is between 96% and 100%. When a normal person is in a plateau area, the oxygen saturation should also be within the normal range, and when the oxygen saturation drops, it needs to be treated by active oxygen absorption, or even by using a ventilator. Because of the high altitude of the plateau area, oxygen is thinner than the plain, when a normal person is suddenly in the plateau will trigger a drop in oxygen saturation, it is recommended that patients go to a regular hospital for examination and determine the cause of the disease before reasonable treatment, early recovery, and good care work. Highland hypoxia will cause dizziness, headache, nausea, vomiting, panic, arrhythmia and other symptoms, which need to go to hospital for treatment in time.