Dermal melanocytosis includes various kinds of congenital and acquired hyperpigmentation, which is characterized by a presence of intradermal dendritic, pigmented melanocytes. Among the congenital dermal melanocytosis, Mongolian spots, nevi of Ota, and nevi of Ito are usually present at birth or appear in early childhood. However, there are several types of acquired dermal melanocytosis that usually appear during adult life. Acquired dermal melanocysosis usually appears in Asian women. A 22-year-old woman presented with asymptomatic, multiple, symmetric, brown colored macules on the nasal ala, both dorsums of hands and feet which had been for more than 10 years. A skin biopsy from her dorsum of foot showed some pigmented dendritic cells in superficial dermis. Immunostaining for Mart-1 revealed positivity for the pigmented dendritic cells. Based on the clinical and histopathological findings, she was diagnosed with acquired dermal melanocytosis on the face and extremities.