Obstetric shock is categorized into shock compensation phase, shock suppression phase, and shock exhaustion phase. A weak pulse or even inability to clearly palpate is a symptom of the shock suppression phase. Although there are different causes of shock, there are relative and absolute effective circulation volume insufficiency, and the pathophysiological changes of microcirculation have different obstacles along with the process of shock, so the principle of treatment for shock should remove the causes of shock as soon as possible, supplement blood volume, correct microcirculation obstacles, improve cardiac function, and restore the normal metabolism of the organism. Although the causes of shock are different, there are both relative and absolute effective circulation insufficiency. The pathophysiological changes of microcirculation have different obstacles with the process of shock, so the treatment principle of shock should remove the causes of shock as soon as possible, supplement blood volume, correct microcirculation obstacles, improve cardiac function, restore normal body metabolism, and give corresponding treatments according to different stages of shock. Clinical manifestations of the symptoms of weak pulse or even inability to clearly touch: the patient’s expression is apathetic, unresponsive, cyanosis of lips and limbs, cold sweat, rapid pulse, and even lower pulse pressure difference. In severe cases, confusion or coma, the skin and mucous membranes of the whole body are obviously hypoxic and cyanotic, the extremities are cool, the pulse is weak or even not clearly palpable, the blood pressure drops or even 0, oliguria or anuria, the CO2 binding capacity decreases acidosis. Skin, mucous membrane hemorrhage or gastrointestinal bleeding, indicating that the condition has developed to the stage of disseminated intravascular coagulation, if the active treatment is still no progress, may be secondary to respiratory distress, if the arterial blood pressure drops to 8kPa (60mmHg) or less, although pressurized oxygen delivery symptoms can not be improved, oxygen partial pressure can not be increased, suggesting that the respiratory distress syndrome, as well as other organ damage, will enter the exhaustion stage.