Eruptive xanthomatosis is a condition of extensive yellowish papules and nodules with fat deposits which can spread systemically. Although eruptive xanthomatosis is usually related to abnormal lipid metabolism, few cases have been reported in patients with normal lipid levels. The current treatment option is treatment of dyslipidemia by lifestyle modification and lipid-lowering agents. But treatment strategies in normolipidemia patients have not been established. Herein, we report an unusual case of eruptive xanthomatosis in normolipidemia patient showing clinical improvement after narrow-band ultraviolet B therapy. (Korean J Dermatol 2021;59(4):303∼306)