Microbiological fuel cell

The invention provides a microbiological fuel cell which can recycle organic garbage. The cell comprises an anode chamber and a cathode chamber, wherein the anode chamber is connected with the cathode node by a salt bridge; the anode chamber is filled with the organic garbage, water and anaerobic sludge and the inside of the anode chamber is an anaerobic environment; and the cathode chamber comprises disodium hydrogen phosphate and a sodium dihydrogen phosphate buffer solution and the inside of the cathode chamber is an aerobic environment. By using a processing method of the cell, organic matters in the organic garbage on an anode zone surface can generate carbon dioxide, protons and electrons under the action of anode microorganisms, wherein the electrons are delivered to an electrode by a midbody or a cytomembrane and then reach a cathode by an external circuit, and the protons are transferred to the cathode by a salt bridge solution and then reacts with oxygen to generate water, thus matters and charges in the whole process are balanced and external electrical equipment acquires electric energy. The cell is simple in method and device structure and is environmentally-friendly; and the organic garbage is utilized effectively.