Music Therapy-a sort of newly developed clinical skills in the health care field-is defined as a therapy which, using music to maintain, restore and improve patients physical, mental and emotional problems”. In recent years, more and more researchers and specialists have proposed that music be used onto medication and endorsed the use of music therapy into care for dementia, with concrete and convincing figures or hands-on experiences. The aim of this essay is to make a summary, including the effect of music therapy for dementia patient's physical and mental health, the way cutting into, the two music therapy models for Patient. This essay expects that could help clinic medical staffs know more about the way using music therapy to dementia patients, apply music therapy to dementia patients and finally improve the quality of dementia care.