An odor presentation device, comprising an odor emission device (1), at least two odor source supply devices (2), a cleaning liquid supply device (3), an odor mixing device (4), and a drive control device (5)； the odor mixing device (4) comprises a mixing chamber having variable pressure and a plurality of interfaces that communicate with the mixing chamber, and the odor source supply devices (2) and the cleaning liquid supply device (3) communicate with the mixing chamber by means of the interfaces； an outlet of the mixing chamber is connected to the odor emission device (1), and the drive control device (5) is connected to a side of the mixing chamber and drives the pressure within the mixing chamber to change； and control valves are provided between the odor source supply devices (2) and the mixing chamber, as well as between the cleaning liquid supply device (3) and the mixing chamber. By means of the described device, a plurality of odors may be chosen for release, and a single odor or a mixture of multiple odors may be implemented, the odor being presented to users by means of the odor emission device； in addition, residual odors may be promptly removed by means of the cleaning liquid supply device so as to prevent the residual odors from affecting subsequent new odors.L'invention concerne un dispositif de présentation d'odeur, comprenant un dispositif d'émission d'odeur (1), au moins deux dispositifs d'alimentation en sources d'odeur (2), un dispositif d'alimentation en liquide de nettoyage (3), un dispositif de mélange d'odeurs (4) et un dispositif de commande d'entraînement (5) ； le dispositif de mélange d'odeurs (4) comprend une chambre de mélange ayant une pression variable et une pluralité d'interfaces qui communiquent avec la chambre de mélange, et les dispositifs d'alimentation en sources d'odeur (2) et le dispositif d'alimentation en liquide de nettoyage (3) communiquent avec la chambre de mélange au moyen des interfaces ； une sortie de la chambre de
