An organic waste disposer includes a frame having a plurality of heating plates, a driving device, a treating trough, a stirring device, a final treating container, a water collection device, etc. In disposing the organic waste, the organic waste being added with a yeast (for instance, Bio) is placed into the treating trough for fermentation, and in combination with the stirring device and natural micro-organism decomposition, the organic waste is decomposed to form feeds or organic fertilizer, which are collected by the final collection container. The odor and moisture of the organic waste are removed and collected by the water removing device.
