[Problem] To establish a corpse preservation method that takes into account the internal structure of the human body and is highly effective in preventing the progression of decay. [Solution] A syringe is filled with an antiseptic agent for the body interior that is made from an amino acid extracted from a grain and is in a liquid form for injection into a corpse. An antiseptic agent for the body surface, which is made by combining glycerol and a seaweed-derived gel with the antiseptic agent for the body interior, is applied to the hair of the corpse and the body surface portion of the entire corpse. Next, the passage from the nasal cavity to the trachea of the corpse is opened by turning the lower jaw upward when the corpse is supine. A tube having a small diameter is inserted from the nasal cavity of the corpse, which has the lower jaw turned upward, and while one end of the tube is kept outside the corpse, the other end of the tube is passed through the pharynx of the corpse so as to reach the larynx. The one end of the tube that is kept outside the corpse is attached and connected to the tip of the syringe that is filled with the antiseptic agent for the body interior. The antiseptic agent for the body interior is injected into the corpse by pushing in the plunger of the syringe.La présente invention vise à fournir un procédé de conservation de cadavre qui prend en compte la structure interne du corps humain et est hautement efficace pour empêcher la progression de dégradation. À cet effet, l'invention concerne une seringue qui est remplie d'un agent antiseptique pour l'intérieur du corps, qui est réalisé à partir d'un acide aminé extrait d'un grain et est sous forme liquide pour l'injection dans un cadavre. Un agent antiseptique pour la surface du corps, qui est réalisé par combinaison de glycérol et d'un gel dérivé d'algue marine avec l'agent antiseptique pour l'intérieur du corps, est appliqué sur les cheveux du cadavre et la partie de surface du corps du cad
