The invention relates to a preparation method of fermentation type black currant fruit vinegar and fruit vinegar beverage. The preparation method comprises the following steps: pulping black currant fruit and then carrying out enzymolysis with pectinase so as to obtain black currant juice; based on grape wine active dried yeast as a wine yeast, carrying out low-temperature alcohol fermentation; carrying out acetic acid fermentation with AS1.41 acetic acid bacteria so as to obtain the fermentation type black currant fruit vinegar; and adding raw materials such as a flavor agent, a sweetener, a sour agent, the black currant juice, oligosaccharide, purified water and the like in the fermentation type black currant fruit vinegar to prepare the black currant fruit vinegar beverage. The preparation method comprises the following process flows of selecting and washing the black currant fruits, washing and pulping, carrying out enzymolysis, filtering, conditioning components, carrying out alcohol fermentation, carrying out acetic acid fermentation to obtain the fermentation type black currant fruit vinegar, blending, homogenizing, filling, and sterilizing so as to obtain the black currant fruit vinegar beverage. The technical scheme provided by the invention is practicable; the produced fermentation type black currant fruit vinegar and fruit vinegar beverage are rich in fruit fragrance, good in taste and rich in nutrition. The process technique is simple, and is easy for industrial production.