Renal syndrome hemorrhagic fever, or hemorrhagic fever, is an infectious disease of natural origin. The high incidence of epidemic hemorrhagic fever occurs from November to January each year. The incidence of hemorrhagic fever is concentrated in the rural and urban fringe areas, while urban residents contract the disease mainly due to exposure to mites in the wilderness, grasslands, or other wet areas. Currently, farmers account for the majority of the population with hemorrhagic fever, and the number of urban cases has increased in recent years. The typical symptoms of hemorrhagic fever infection are “three pains (headache, back pain, orbital pain)” and “three reds (red face, red neck, red forehead)”, and the disease has five stages, namely fever, hypotensive shock, oliguria, polyuria, and recovery. Early febrile phase symptoms are not characteristic and somewhat similar to common cold symptoms, such as fever, headache, etc., so it is easy to misdiagnose. The hypotensive shock phase and oliguric phase are the extreme phase of the disease, i.e., the most severe period, and the death rate is extremely high during this period. The three early and one on (early rest, early diagnosis, early treatment and treatment in a medical unit with medical conditions) are the basic principles of treatment of the disease and are directly related to the prognosis of the disease. In order to effectively prevent hemorrhagic fever, rural families should pay attention to hygiene when eating, always heat leftover food and kill rodent excrement that may remain on food, while urban residents should minimize contact with places where rodents are active, such as wet turf and green areas, during this period. Vaccination is one of the effective ways to prevent hemorrhagic fever. The characteristics of the disease are graphically summarized as follows: “high fever, red face, drunken appearance, headache and back pain like a cold, bleeding spots on the skin and mucous membranes, nausea, vomiting and proteinuria”.