Moving feeding device is a new type of material conveying device, which has the advantages of large carrying capacity, small space occupation and wide application range. The mobile feeding device can not only be used as the material transportation device in the fixed site, but also as the container bottom of the whole vehicle for transfer transportation. The mobile feeding device is different from the traditional material transport device. The main actuator of the device is three hydraulic cylinders, which can realize sequential motion and common motion through its own hydraulic system, so as to push the bottom plate out and back circulatory.