Alzheimer's disease (AD) is the most common form of dementia, which affects more than 35 million people worldwide with increasing tendency. AD brings stupendous economic burden for both the society and family. It has become a major global public health issue. Electro-acupuncture (EA) therapy has been widely used in AD treatment with satisfactory results. Based on the basic research, this paper explored the therapeutic effect of EA in AD treatment from the learning ability and morphological changes in AD animal models. From the cholinergic neuronal apoptosis theory, inflammatory response theory, oxidative stress theory and other aspects, the action mechanism of EA in the treatment of AD animal models were reviewed. At last, limitations of EA in AD treatment were analyzed. It proposed the outlook of a new type of EA-music EA in AD treatment. It provided a new idea and method for AD clinical treatment.