The present invention relates to a method for manufacturing a double-chamber container (100) comprising a dried medicine housing chamber (61) and a medical fluid housing chamber (62) which are separated by a weakly sealing part (30), the method comprising the steps of: preparing a first sheet forming member (10) including a first dried medicine housing chamber forming part (11) and a first medical fluid housing chamber forming part (12), which each have one side thereof (11A, 12A) bonded to each other, and a second sheet forming member (20) including a second dried medicine housing chamber forming part (21) and a second medical fluid housing chamber forming part (22), which each have one side thereof (21A, 22A) bonded to each other； and forming the dried medicine housing chamber (61) and the medical fluid housing chamber (62) by bonding the first sheet forming member (10) and the second sheet forming member (20). The weakly sealing part (30) is formed by bonding one side (12A) of the first medical fluid housing chamber forming part (12) and one side (22A) of the second medical fluid housing chamber forming part (22).La présente invention concerne un procédé de fabrication d'un contenant à double chambre (100) qui comporte une chambre renfermant un médicament séché (61) et une chambre renfermant un fluide médical (62), lesdites chambres étant séparées par une partie de scellement hermétique faible (30), ledit procédé comportant les étapes consistant : à préparer un premier élément de formation de feuille (10) comprenant une première partie de formation de chambre renfermant un médicament séché (11) et une première partie de formation de chambre renfermant un fluide médical (12), lesdites parties ayant chacune un côté (11A, 12A) relié l'un à l'autre, et un second élément de formation de feuille (20) comprenant une seconde partie de formation de chambre renfermant un médicament séché (21) et une seconde partie de formation de chambre renfermant un fluide médical (22),
