The invention discloses the formula and preparation method of the flawless membrane powder, including angelica, chuanxiong, angelica, motherwort, black plum, bitter gourd, white vinegar, tofu flower, honey, flour, southern bean curd, honey, distilled water, antibacterial agent, banana, apple and Egg yolk, the quality of each component is 10g angelica, 10g chuanxiong, 30g angelica, 10g motherwort, 5g black plum, 8g bitter gourd, 12g white vinegar, 10g tofu flower, 15g honey, 30g flour, 6g southern tofu, 20g honey, 15g distilled water, 4g antibacterial agent, 13g banana, 15g apple and 10g egg yolk, divide 30g flour into three parts, each 10g, divide 30g honey into three parts, each 10g, divide 15g distilled water into two parts, one part 5g, one part 10g. The beneficial effect of the invention is that the water replenishing and moisturizing effect is good, the preparation is simple and the cost is low.