Heat stroke is a type of heat stroke, which is categorized into exertional and non-exertional, and its main causes are high environmental temperature, increased heat production, etc. It is not an infectious disease and is not contagious. The main causes of heat stroke are high environmental temperature and the body’s heat production, heat dissipation disorder, sweat gland dysfunction, etc.. The specific pathogenesis of exertional pyrexia is endogenous excessive heat production; the pathogenesis of non-exertional pyrexia is reduced heat dissipation caused by dysfunction of thermoregulation. The typical manifestation of pyrexia is high body temperature >40℃, accompanied by mental disorder, etc., which is more serious and should be prevented. For example, in the hot weather of summer, we should pay attention to wearing light-colored breathable clothes and minimize outdoor activities. Improve working conditions in hot environments, etc. If there is any discomfort, it is recommended to seek medical advice and treatment in time.