Patients with heat stroke should first be removed from the hot environment, while closely observing vital signs and taking medication. Heat stroke is an acute disease caused by the dysfunction of the patient’s thermoregulatory center in an environment with high temperature or humidity, as well as in an airless environment. The patient will have symptoms such as profuse sweating, weakness of limbs, dizziness, nausea, lack of concentration and flushing. If symptoms of suspected heat stroke occur, one should quickly get out of the hot and humid environment and move to a ventilated and cool place. And you can use cool water to spray or wet towel to wipe the whole body, to play a role in reducing body temperature. During this period, blood pressure, heart rate, respiratory rate, and changes in pulse oximetry need to be closely observed. If the patient develops cerebral edema, intravenous mannitol can be administered to lower the cranial pressure. If the patient develops hypotension, saline and lactated Ringer’s solution can be administered intravenously to restore blood volume. Once dizziness, panic and other uncomfortable symptoms occur in the hot environment, you need to stop working and go to the shade for rest.