When a pregnant woman is suffering from hypoxia, she should be treated with oxygen in a timely manner, and the cause of hypoxia should be identified and treated. There are many causes of hypoxia in pregnant women, such as overstress, fatigue, anemia, heart disease, lung infection and so on, which can cause different degrees of hypoxia. Regardless of the cause of hypoxia, should be timely to the hospital, the first oxygen treatment, but also in the home always prepared for home oxygen machine, for pregnant women at home oxygen use. At the same time, we should actively look for the causes of hypoxia in pregnant women, such as those caused by stress and fatigue, which can be relieved after resting on oxygen. Pregnant women who are anemic should actively correct their anemia and undergo iron supplementation therapy. If there is lung infection or heart disease, further treatment should be carried out for the primary disease. In addition, pregnant women with hypoxia should avoid strenuous exercise or going to crowded places.