The vacuum degassing tank is used for homogenized fruit juice to degas in vacuum condition, in order to prevent the oxidation, and extend the shelf life of fruit juice. The vacuum degassing unit includes vacuum degassing machine, vacuum pump and centrifugal pump. It uses vacuum suction action to remove air (oxygen) in material, resist oxidation, and improve the quality of the products. At the same time, to remove hang scattered particle gas, prevent the particle rise, effectively improve the appearance of the products, still can reduce foam produced by filling and high temperature sterilization, improve the appearance of the products, but also can reduce the container's inner surface corrosion.