The invention discloses a smoothie acne-removing acne gel and its preparation method. The smoothie acne-removing gel is prepared from humectant, acne-removing agent, bio-polysaccharide glue, preservative, pigment and water. A Chinese medicinal preparation is prepare by mixing humectant, bio-polysaccharide gum and acne-removing agent evenly, adde water, stirring, heating to dissolve completely, stir, cooling to 40-45 DEG C, adde preservative and pigment, and keeping stir; as that temperature drop to 32-37 DEG C, the stirring speed is adjust to high-speed stirring, the temperature drops further,and the stirring is maintain for 25-45 minutes after the temperature drops to room temperature. The acne removing gel is novel in appearance and rich in texture when used. And solves the problem thatthe common hydrogel is difficult to thicken salicylic acid, so that the salicylic acid maintains good acne removing activity.