Ota's nevus is a congenital benign oculo-dermal melanocytosis as a macular hyperpigmentation on the face. The color of lesion is mostly blotchy gray to blue or blue. Ota's nevus can cause emotional and psychological distress because the face can be a disfigurement, so appropriate treatment is necessary. However treating the Ota's nevus without side effects such as purpura, crust, postinflammatory hyperpigmentation and scarring is extremely difficult. Therefore, the authors introduce a new treatment Using Dr. Hoon Hur's Golden Parameter with a high fluence 1064 nm Q-switched Nd: YAG laser that can effectively treat Ota's nevus without side effects and recurrences.