To provide an automatic cleaning device capable of performing efficient cleaning processing by sequentially moving each group of hangers of clothing from a preparing chamber for hanging the clothing on the hangers for standing by, through a cleaning chamber for cleaning the clothing to a drying chamber.

The cleaning chamber 5 is installed adjacent to the preparing chamber 3, wherein each group of a plurality of clothing 1 hanging on the hangers 2 is received from the preparing chamber 3. The hung clothing 1 is conveyed by an overhead traveling crane 21 through a transportable horizontal bar 5. Vibrating plates 7 and 10 are arranged on the bottom of a cleaning tank 6, which is operated by electromagnets 8 and a came 11.