The bagging device comprises a bottom plate, an opening supporting mechanism is hinged to the upper end of the bottom plate, a baffle is arranged at the lower end of the bottom plate, vertical plates are arranged on the left side and the right side of the bottom plate respectively, a placing plate is arranged on the bottom plate located between the pair of vertical plates, and the placing plate is arranged on the bottom plate. The bottom of the placing plate close to one end of the opening expanding mechanism is connected to the bottom plate through a compression spring, the upper end, close to the baffle, of the vertical plate is provided with a blocking piece, one side of the opening expanding mechanism is movably connected with a blocking piece, one end of the blocking piece extends towards one side of the placing plate, and the other end of the blocking piece extends towards the other side of the placing plate. A bag pressing plate is arranged on the side, facing the containing plate, of the opening supporting mechanism, balls are embedded in the bottom of the bag pressing plate in a sliding mode, and a bag pressing piece is arranged on the edge, facing the vertical plate on one side, of the bag pressing plate. The bagging device can be used for bagging fruits with different fruit stem lengths, and the bagging range of the bagging device is expanded.