An pet food dispensing device includes a dispenser, an outer case, a pet food container, a slant guide, a driving device, and dispensing spouts. The dispenser includes a shaft, a dispensing disc, and a stirrer. The dispensing disc includes a top and bottom layers, which are positioned adjacently. The top layer of the dispensing disc includes one or more bumps on the top surface. The stirrer of the pet food dispenser includes a first flap extended from the first edge of the bottom layer of the dispensing disc, and the first flap is bent downwardly below the horizontal plane. In another embodiment, the stirrer includes an inner case and an elastic string member adjacently below the dispensing disc. The angle of the arc recess defined by the top and bottom layers varies from zero to one hundred eighty degrees. An outer case houses all parts.