The invention discloses a charging device which is used for charging bagged materials in a loading machine head to a certain zone. The charging device comprises a vehicle frame, a placement platform and a transmission mechanism; the vehicle frame moves in the loading machine head; the placement platform comprises at least two groups of bottom plates which can rotate around the vehicle frame; the front, rear, left and right sides of the inner part of the vehicle frame are separately connected at least one group of bottom plates; and the transmission mechanism is arranged on part of the bottom plates and is used for adjusting the position of the bagged materials on the placement platform. The charging device has the advantages that the front, rear, left and right sides of the inner part of the vehicle frame are provided with the openable bottom plates, so that the opening sequence of different bottom plates can be selected according to postures of bagged materials entering the placementplatform; the phenomenon that bags are overturned during a bagged material falling process can be effectively avoided; and posture stability of falling bags is maintained.