Oxygen plasma cleaning machine is a surface cleaning and hydrophilic treatment device. When in use, a certain amount of oxygen is introduced into the vacuum chamber, and a voltage is applied by the radio frequency power supply to generate high-energy oxygen plasma. These oxygen plasmas bombard the sample surface to achieve the cleaning effect. It is mainly used for sample surface cleaning, activation, bonding, degumming, metal reduction, simple etching, surface organic matter removal, hydrophilic modification experiments, coating pretreatment, coating pretreatment, etc. It is maintenance-free and does not require any consumables. In addition, oxygen plasma adheres to the surface of the sample, and oxygen-containing functional groups such as hydroxyl (-OH), carboxyl (-COOH) and carbonyl (-C=O) will be formed on the surface. These functional groups increase the polarity of the material surface and can improve the hydrophilicity of the surface to a certain extent.