The present invention provides a novel Pichia kluyveri strain (CCTCC NO: M 2015626) and the method of using this new strain to produce fermented nonalcoholic red bayberry juice. The method comprises incubating Pichia kluyveri CCTCC NO: M 2015626 with red bayberry juice in a fermentation process to make the fermented nonalcoholic juice, which includes an aerobic, anaerobic and a low temperature fermentation. The fermented bayberry juice of the present invention has bright color, low alcohol content (<;0.5%) and high nutritional values. It maintains the characteristic fruity flavor of red bayberries with added mellow taste and aroma from the fermentation.