作者从精神医学和书画艺术两个不同的层面 ,对被称为疯癫痴狂的精神失常画家进行了较为细致的研究。认为他们中的多数并非真正意义上的精神病患者 ,而是外行人的错觉或艺术家自身的佯装。通过徐渭、凡高、石鲁等中外绘画史上悲剧性画家的个案研究 ,证实可能由于幻觉和幻想的作用 ,精神分裂对画家画风的改变确实存在着较为明显的影响。但在正常状态下 ,画家的感情与品质 ,仍能通过其作品透其真性情 From two different levels of psychiatry and painting and calligraphy, the author makes a more detailed study on the insane painter named as crazy madness. Think that most of them are not mental patients in the real sense, but the illusion of laymen or the pretentiousness of artists themselves. Through the case studies of tragic painters in the history of Chinese and foreign painting such as Xu Wei, Van Gogh, Shi Lu and others, it is proved that the schizophrenic may have a more obvious influence on the change of painter’s style of painting possibly due to the effect of illusion and illusion. However, under normal conditions, the artist’s feelings and qualities can still permeate his true feelings through his works