An inverse animal feeder comprises a feeding device, a power controlling device and a tray. The feeding device comprises a cover plate and a feeding opening inside the cover plate. The power controlling device comprises a motor in a main frame, a power source and a controller for feeding automatically. The tray mounted below the power controlling device and in an outer frame, and the tray is driven by the motor. The outer frame has a plurality of through holes the main frame is mounted between the cover plate and the outer frame and the cover plate is connected to the main frame by holders. Additionally, the main frame has at least one fastening block and the outer frame has at least one fastening groove, so that the fastening groove is fastened to the fastening groove to connect the main frame and the outer frame.
