Abstract: Objective To investigate the clinical and intellectual characteristics of children with cerebral palsy of ataxia type.Methods Twenty-one children with cerebral palsy of ataxia type were evaluated by the illness history,clinical physical examination,brain MRI scan and intellectual assessment.Results Delayed motor milestones and dysfunction of balance were found in these children,and 80.9% of brain MRI scan was abnormal as cerebellar damage,and delayed intellectual ability found in these children was ameliorated as improvement of motor function.Conclusion Cerebral palsy of ataxia type is mainly caused by cerebellar damage manifests as delayed motor function,dysfunction of balance and mental retardation.

Key words: cerebral palsy, ataxia, clinic, intelligence