In the production of fruit juice, the maintenance of flavor and nutrition is the bottleneck restricting the development of the industry. The membrane filtration process is carried out at room temperature. Mild filtration helps to retain the original taste of raw materials, and remove bacteria, spores, gum, odor, bitterness, etc. it is a very promising technology of sterilization and clarification for juice drinks. Because the raw materials contain products that block the filter material, Hangzhou Dali has rich process experience in selecting suitable filter products.