Eyebrow tattooing is a cosmetic surgery method that penetrates metal or plant pigment into the dermis by piercing the skin, and then permanently maintains the eyebrow shape. The key to eyebrow tattoo lies in the severity of tattoo technique and the depth of pigment. Eyebrows tattooing can increase the density of eyebrows and the overall aesthetic feeling of human face, which is suitable for people with congenital sparse eyebrows or acquired partial eyebrow loss, poor eyebrow shape, eyebrows with scars and irregular eyebrows.