Abstract: The purpose of this invention is to provide a comprehensively excellent composition to prevent bodily fluids leakage from a corpse and the treatment method to prevent bodily fluids. The composition can be stored for a long time in spite of using superabsorbent polymer. The composition can be easily injected in a corpse with gas pressure when applied. The composition turns jellied instantly when it contacts to bodily fluids and can prevent bodily fluids leakage certainly. The corpse-treatment composition is made as fine powder of superabsorbent polymer to enable to gel water is dispersed in liquefied gas with dissolved essential oil or vegetable oil in an aerosol-can. The corpse-treatment method is the method as corpse-treatment composition in the state that fine powder of superabsorbent polymer to enable to gel water is dispersed in liquefied gas with dissolved essential oil or vegetable oil is injected into a corpse in an aerosol state.