The present invention specifically discloses flower black tea food and a processing method thereof and an application thereof. The flower black tea food is prepared from plant flowers and black tea asraw materials, and the raw materials are in the following weight percentages: 10-50% of plant flowers and 50-90% of black tea. The method is as follows: firstly the raw materials are picked, the picked raw materials are soaked, the soaked raw materials are crushed, the crushed raw materials are distilled, the distilled raw materials are wrapped to obtain a solution, then the distilled remaining residues and remaining liquid are subjected to a natural fermentation, juice extracting, centrifugal separating, filtering and concentrating are conducted to obtain a concentrated solution, then the distill wrapped solution is blended with the concentrated solution evenly, and filling, sterilizing and cooling are conducted to prepare products. A technology makes full use of the raw materials, and the flower black tea food is applied to food, cakes, seasoning products, soft drinks, wine products, and nutritional supplement products, can well reflect taste and flavor of the flowers and black tea,forms a unique style, increases a variety of flavors and raw material choices of the flavored products, and has relatively good applications, benefits and prospects.