PROBLEM TO BE SOLVED: To provide a container charging device that can charge containers to a work line in the same direction, while separating the containers stacked.SOLUTION: A container charging device includes: a stacked container installation unit 3 for installing stacked containers 110; a delivering unit 4 for separating the stacked container by unit number from the bottom step and delivering the containers while being stacked in unit number to the side of a conveyance path; a lifting unit 6 for lifting the unit number containers from the lower part; a gripper 5 for gripping the peripheral enclosure of the containers of the top of the unit number containers from the inside; a separation unit 9 for gripping the containers of the bottom step of the unit number containers, and separating the containers upper than the bottom step of the unit number containers; an ejection unit 8 for ejecting the separated containers of the bottom step into the conveyance path; and a rotating unit 7 for rotating the container