The principle of ultrasonic cleaning is that the cavitation will produce in the liquid because of 25 thousand vibration at one second. Wallop will be produced from the breaking of cavitated bubble that is formed by the ultrasonic wave affected the liquid. The action of cavitation is that the strong force will impact the cleaning object and all dirt on the surface of object will be peeled off.. Ultrasonic technology successfully used in wire surface cleaning is a great reform in the field of current metal products continuous line compared with traditional hydrochloric acid cleaning and sulfuric acid cleaning process.