The invention discloses a preparation method of black tea capable of enriching the blood and beautifying the skin. The preparation method comprises the following steps: (1) respectively putting tender tea leaves, panax notoginseng leaves and the like on a wet gauze, covering the wet gauze, baking the wet gauze, taking out the wet gauze, spraying a first nutrient solution, baking the wet gauze, taking out the wet gauze, spraying a second nutrient solution, and baking the wet gauze; (2) a, taking out and mixing the tender tea leaves, the panax notoginseng leaves and tender lotus leaves, putting the mixture in a gauze bag, oscillating, kneading and twisting the gauze bag, then spraying a third nutrient solution, and carrying out fermentation to obtain a mixture A; b, taking out and mixing peanut leaves, rose petals and jujube leaves, carrying out refrigeration and electron beam irradiation, then putting the mixture in an iron pan, and stirring and heating the mixture to obtain a mixture B; and (3) uniformly stirring the mixture A, the mixture B and a fourth nutrient solution, and then, carrying out ultrasonic treatment and charcoal baking to obtain the black tea capable of enriching the blood and beautifying the skin. The black tea prepared by the preparation method disclosed by the invention is tight and thin in tea shape, less in tea dust, black in color and luster, elegant and mellow in taste and red and bright in soup color and has the beneficial effects of enriching the blood and beautifying the skin.