Reduce the concentration of dissolved oxygen in purified water sequentially purified from sand filter, cation exchange resin, micro filter, reverse osmosis filter, and prepare nitrogen-substituted oxygen-degassed water with nitrogen substitution. After mixing and diluting the substituted oxygen degassed water to prepare the juice, add the juice and the additive to the mixing tank, fill the mixing tank with nitrogen, homogenize through filtration, preheating and degassing, sterilization and cooling By preparing a juicer drink, filling the container and filling with nitrogen,Reduce the dissolved oxygen and use nitrogen-substituted oxygen-degassed water, which is nitrogen-substituted, and at the same time, using nitrogen-filled mixing tanks and vessels to prevent maximum mixing with dissolved oxygen in purified water and oxygen in the mixing tanks and vessels. Not only can the taste and aroma of the juice beverage be prevented from being altered, but the nutritional components of the concentrated juice can be prevented from being destroyed and lowered.In addition, in the present invention, using a mixed tank and a vessel filled with nitrogen-substituted oxygen-degassed water and nitrogen-substituted nitrogen-substituted oxygen concentration in the present invention, preparing a juice juice beverage (DORT: Dissolved Oxygen Removing Technology) It is called.Juicer juice beverage production method for natural flavor and flavor through the dissolved oxygen removing method according to the present invention,A purification step (first step) of sequentially purifying water in a sand filter, a cation exchange resin, a micro filter, and a reverse osmosis filter； A nitrogen-substituted oxygen degassing water manufacturing step (second step) for reducing the concentration of dissolved oxygen contained in the purified water of the first step and substituting nitrogen； A juice solution manufacturing step (third step) of diluting the vacuum-degassed concentrated juice by diluting th
