The utility model discloses a prepare liquid phase stripping off device of two -dimentional nanometer piece, including ultrasonic cleaner, ultrasonic cleaner includes the washing tank, is provided with a plurality of containers of peeling off that are used for splendid attire bulk material and stripper in the washing tank, the liquid phase stripping off device still includes water circle device and agitating unit, water circle device is connected to the washing tank, and agitating unit stirs the stripper inside stretching into and peeling off the container, the washing tank bottom is provided with and is used for the fixed fixing device who peels off the container. The utility model discloses control stirring, supersound, circulating water the temperature, seal and fix a position these function collection in an organic wholes, can the two -dimentional nanometer piece of efficient preparation.