Automatic case packer, case packing machine, carton packing machine can be singly use, applied to various specifications of bottles, pots, tubs, combined use with automatic packing machine and filling machine, to complete the back-end packing line. The products can be automatically arranged and packed into the carton according to the carton filling requirement. In addition, the filled carton will automatically sent to the conveyor roller connected with the unmanned automatic production line.