The invention discloses a deep food processing behavior and particularly discloses a method for carrying out an acid reducing treatment on fruit wine through a bipolar membrane. The method disclosed by the invention comprises the steps of: pumping fruit wine stored in a wine tank into a membrane chamber in a bipolar membrane device through a wine pump, pumping electrolytic water into a membrane chamber, adjacent to the membrane chamber where the fruit wine flows by, from a water tank through a water pump, and pumping polar water into a polar chamber of the bipolar membrane device from a polar water tank through a polar water pump, wherein the bipolar membrane device is connected to a DC power supply. The method disclosed by the invention has the advantages of small membrane resistance, small aperture, low permeability, low power consumption and good separation effect, and the bipolar membrane is a homogeneous membrane; and safety in the treatment process is high, the liquid penetration probability is small, the equipment safety is high, the acid reducing selectivity in the process is high, an organic acid with highest content in the fruit wine is preferentially removed and effect on other substances is small.