A closed fluid transfer device and a closed fluid transfer method. The closed fluid transfer device comprises a first container puncturing implement (7), a second container puncturing implement (6) and a fluid transfer device. The fluid transfer device comprises a first container puncture adapter (3), a second container puncture adapter (5) and a pressure supply device (4). The first container puncture adapter (3) comprises a fixing base (11) for sealing members, a guiding outer housing (18), a fixing base (31) for pipelines, a first fluid pipeline (24) and a second fluid pipeline (25). When the fixing base (11) for the sealing members is connected to the first container puncturing implement (7), a first sealing member (26) and a second sealing member (10) are firstly tightly connected, and the first fluid pipeline (24) and the second fluid pipeline (25) pass through the two sealing members to be communicated with a first container (1). After the first use, the first fluid pipeline (24) and the second fluid pipeline (25) are never in contact with the outside. Fluid in a second container (2) and fluid in the first container (1) are internally conveyed and are not in contact with outside air, so as to avoid dangerous fluids being in direct contact with the air or the human body.L'invention porte sur un dispositif de transfert de fluide fermé et un procédé de transfert de fluide fermé. Le dispositif de transfert de fluide fermé comprend un premier instrument de perforation (7) de récipient, un second instrument de perforation (6) de récipient et un dispositif de transfert de fluide. Le dispositif de transfert de fluide comprend un premier adaptateur de perforation (3) de récipient, un second adaptateur de perforation (5) de récipient et un dispositif d'alimentation en pression (4). Le premier adaptateur de perforation (3) de récipient comprend une base de fixation (11) pour éléments d'étanchéité, un boîtier externe de guidage (18), une base de fixation (31) pour des pi
