The invention provides a device and a method for producing atomized ozonated water by high pressure and relates to the field of environmental management. The device comprises a first pressurizing device, an ozone generator, a water supply device, a first pipeline, a second pipeline, and a spraying device. The first pressurizing device is connected with the ozone generator. The first pipeline is connected with the ozone generator and the spraying device. The second pipeline is connected with the water supply device and the spraying device. The first pressurizing device is used to feed compressed air into the ozone generator. The ozone generator is used to convert part of the compressed air into compressed ozone, and feed the compressed ozone or unconverted compressed air into the spraying device. The water supply device is used to feed water or ozonated water into the spraying device such that either the water is mixed with the compressed ozone in the spraying device to form atomized ozonated water, or the ozonated water is mixed with the unconverted compressed air in the spraying device to form atomized ozonated water. The present invention can provide a cleansing element for air purification, dissolution of chemical gases and assurance of environmental hygiene.
