The diversity of yeast and the changes of yeast group in the traditional wine fermentation were investigated in this paper, to provide basic data for the utilization and effective control of yeast resources and the establishment of modern wine fermentation. Strains of wild yeast were isolated from different kinds of grapes, which were from the major vineyards and wineries in Shacheng and Changli in Hebei province, China. According to the morphological characteristics and physiological and biochemical charac...