A baking device, comprising a housing (1), and a conveying mechanism (2), a driving mechanism (3), and a baking mechanism (4) which are disposed in the housing (1). The baking mechanism (4) is interspersed in the conveying mechanism (2). The conveying mechanism (2) comprises an inner housing (21), and a plurality of conveying units (22) stacked at intervals in the inner housing (21) and transmittingly connected to the driving mechanism. Conveying paths of two adjacent conveying units are connected. Each conveying unit (22) comprises a guide frame (225), a forward conveying assembly (221), and a reverse conveying assembly (222). The conveying directions of the forward conveying assembly (221) and the reverse conveying assembly (222) are opposite. The forward conveying assembly (221) and the reverse conveying assembly (222) are staggered. By stacking a plurality of conveying units at intervals, and making conveying paths of two adjacent conveying units to be connected, a long enough baking conveying path is achieved for the baking device in the case of a limited occupation area, so that the space utilization rate is increased, the baking quality is guaranteed, and the production costs are also reduced.Linvention concerne un dispositif de cuisson au four, comprenant un boîtier (1), ainsi quun mécanisme de transport (2), un mécanisme dentraînement (3) et un mécanisme de cuisson au four (4) qui sont disposés dans le boîtier (1). Le mécanisme de cuisson au four (4) est intercalé dans le mécanisme de transport (2). Le mécanisme de transport (2) comprend un logement interne (21), et une pluralité dunités de transport (22) empilées par intervalles dans le logement interne (21) et reliées en transmission au mécanisme dentraînement. Des trajets de transport de deux unités de transport adjacentes sont reliés lun à lautre. Chaque unité de transport (22) comprend un cadre de guidage (225), un ensemble de transport en marche avant (221) et un ensemble de transport en marche arrièr
