To provide an apparatus for fermentation and drying treatment which enables efficient fermentation and drying of organic waste, etc., is suitable for the conversion of the organic waste to manure and animal feed, is easily handleable, is easily maintained, has a simple constitution, is excellent in the durability, is suitable for mass-production, is relatively low-cost and is economic.

The apparatus for fermentative and drying treatment is provided with a rack A, a rotating drum B which is horizontally disposed on the rack A freely rotatably, a drum end part C of one side which can be mounted on the rack A so as to close one end part of the rotating drum B, a drum end part D of the other side which can be mounted on the rack A so as to close the other end part of the rotating drum B, a stirring blade body E which is freely rotatably supported by each of a pair of the drum end parts C, D, a linking means which can be switched so as to rotate the stirring blade body E together with the rotating drum B or so as to block the rotation of the stirring blade body E, a charging means, a hot air introducing means which introduces the hot air into the drum, a deodorizing device F and a discharging means.