Abstract: 【Abstract】 Narrowband ultraviolet B has been applied to the treatment of vitiligo for more than 10 years in China. Currently, there are no consistent standards for clinical treatment parameters, and patients cannot benefit from non-standard treatment, which is liable to cause erythema, blisters, photoaging and other adverse reactions. Based on the Vitiligo Working Group recommendations for narrowband ultraviolet B phototherapy for vitiligo, relevant literature and clinical experiences, the authors discuss parameters of narrowband ultraviolet B phototherapy for vitiligo from the aspects of treatment frequency, initial dosing, dose adjustment during consecutive treatment or after missed treatment, response plateau, treatment course and maximum acceptable number of phototherapy, so as to improve the efficacy of narrowband ultraviolet B phototherapy for vitiligo.

Key words: Vitiligo, Ultraviolet therapy, Narrowband ultraviolet B, Parameters