Abstract: The history of the research of cerebellar ataxia, and the different classifications of ataxia were reviewed.The pathogenesis and treatments of spinocerebellar ataxia were summarizd.

• 摘 要: 回顾小脑性共济失调的研究历史、分类，介绍脊髓小脑共济失调的病因机制和治疗方法。