Black tea fungus is also named 'haibao' and 'weibao', comprises sugar, tea, water and strain, and is a symbiont of three bacteria being microzyme, lactic acid bacteria and acetic acid bacteria. A breeding growth of the symbiont beneficial bacteria is a benign fermentation process and generates beneficial materials to human body after fermentation, and the natural acidity of the symbiont inhibits the growth of harmful bacteria. Drinking the black tea fungus in moderation regularly is very helpful for human health, especially has good treatment and improvement effect for difficult diseases such as atrophic gastritis, gastric ulcer and the like, and has the effects of adjusting and improving human body function, and prevention and treatment for various diseases. In recent years, a new upsurge for applications and researches of the black tea fungus are raised in Japan, Europe and America. In fact, the black tea fungus originates from Bohai area of China 150 years ago, and is a conventional health-care beverage which lasts for a long time. The black tea fungus is named as a natural health-care beverage in America. By cultivating a mother solution of the black tea fungus and adjusting the mother solution through the xylitol, the black tea fungus natural health-care beverage can be drunk by people, and at the same time, a quality guarantee period of the black tea fungus is improved, thus having a certain value for the business development of the black tea fungus beverage, so that the cultivation of the black tea fungus natural health-care beverage is transformed from a household production mode to a production mode in a large scale.