Abstract： Introduction Xanthogranuloma is a kind of rare,non-Langerhans cell histiocytosis that most commonly occurs in infancy or early childhood.Adult xanthogranuloma was first described by Gartmann and Tritsch in 1963,and there have been only approximately one hundred cases reported until now[1].Diagnosis of this disease might be complicated due to its unusual forms,and a group of dermatoses need to be differentiated.We here described a case of multiple adult xanthogranuloma (MAXG) in a young man.