An automatic fluid discharge and drainage device comprises a drainage container (1) that is separated into a fluid storage cavity (11) and a fluid discharge channel (12) by using a partition (2). A connecting pipe (13) is disposed on the fluid storage cavity (11). A fluid discharge outlet (14) is provided on the fluid discharge channel (12). The partition (2) is provided with a fluid drainage outlet (21) that connects the fluid storage cavity (11) to the fluid discharge channel (12). A movable gasket (3) that can close the fluid drainage outlet (21) is disposed below the partition (2), and a control device that is equipped with a remote control receiving module and that can control the movable gasket (3) in a forced manner to open the fluid drainage outlet (21) or a control device that can monitor a liquid level in the fluid storage cavity (11) to open or close the fluid drainage outlet (21) by using the movable gasket (3) is further provided. The automatic fluid discharge and drainage device remotely triggers the control device by using a remote control contact module or activates the control device by monitoring the status of the liquid level, to control movement of the movable gasket (3), so as to indirectly control the fluid drainage outlet (21) to be opened and closed. The fluid discharge and drainage device has higher precision, requires no manual operation in the fluid discharge process, can accurately record the fluid drainage status, effectively reduces labor intensity of nursing personnel and prevents an operator from being inflected, and has better security and convenience.Ce dispositif dévacuation et drainage automatiques comprend une séparateur (2) destiné à diviser un réservoir de drainage (1) en une chambre de réservoir (11), sur laquelle se trouve un tube de liaison (13), et un passage dévacuation (12), sur lequel est pratiqué un orifice de drainage (14), ledit séparateur (2) comportant un orifice dévacuation (21) pour la chambre de réservoir (11) et