Transcranial magnetic stimulation (TMS), as a non-invasive nerve stimulation method, has become a research hotspot for the treatment on Alzheimer’s disease due to its relatively safe and non-invasive characteristics. Therefore, this paper first introduces TMS’s principle. Secondly, analyzes TMS’s therapeutic effects on the global cognitive function and different cognitive domains in Alzheimer’s disease. TMS’s different parameters on the global cognitive function also analyzes respectively. Finally, this paper summarizes TMS’s therapeutic mechanism and discusses the possible treatment options in the future.