NOVELTY - Organic waste processing apparatus has a microbial bed (35) placed inside a processing chamber (36) for decomposing organic waste (39) using microorganisms. An enzyme treatment unit (38) is provided on the top portion of the processing chamber to supply enzyme liquid (56) into the chamber for enzymatic decomposition processing of the organic waste on the microbial bed inside the processing chamber. The enzyme treatment unit includes an enzyme storage tank (42) formed with an insertion opening (40) which opens and closes at bottom portion for supplying the enzyme liquid to the organic waste.    USE - For use in e.g. ordinary homes, school, factory, restaurant, hotel for processing organic refuse.    ADVANTAGE - Ensures reliable decomposition treatment of organic waste inside processing chamber using small amount of enzyme liquid due to improved contact efficiency and direct supply of enzyme towards the organic refuse on the microbial bed inside the processing chamber. Ensures favorable holding activity of microorganisms on the microbial bed inside the processing chamber and prolonged service life of the microbial bed for efficient decomposition of organic waste. Ensures reduced installation cost and running cost since there is not need for separate heat source to heat up the enzyme liquid storage tank. Ensures compact structure since there is no need for enzyme liquid storage tank at the exterior of the processing chamber. Ensures direct dispersal of enzyme towards the organic waste inside the processing chamber even if enzyme powder is used. Ensures reliable enzyme treatment of organic waste due to controlled supply of enzyme liquid for treating the organic waste day and night.    DESCRIPTION OF DRAWING(S) - The figure shows the outline side view of the organic waste processing apparatus.    Microbial bed (35)    Processing chamber (36)    Enzyme treatment unit (38)    Organic waste (39)    Insertion opening (40)    Enzyme storage tank (42)    Enzyme liquid (56)