Membrane separation technology is applied in fruit wine processing to realize clarification, impurity removal and sterilization at normal temperature. It effectively intercepts pectin, protein, yeast residues and colloidal particles, while well retaining original flavor, aroma and nutrients of fruit wine. The technology solves turbidity, precipitation and short shelf life problems, features no chemical addition and low-temperature treatment, optimizes production process, improves product stability, and is widely used in industrial refining of various fermented fruit wines.