Abstract: Objective To observe the effect of acupuncture and acupoint injection on dementia in elder.Methods 38 old dementia patients were divided into senile dementia(Alzheimer's disease,17 cases)and vascular dementia(21 cases).They were treated with acupuncture and acupoint injection with Piracetam.Results 7 cases improved in senile dementia patients,while 2 cases were excellent,7 cases were good,9 cases improved in vascular dementia patients.Conclusion Acupuncture and acupoint injection with Piracetam is more effective on senile dementia than vascular dementia.

Key words: acupuncture, acupoint injection, senile dementia(Alzheimer's disease), vascular dementia