Alzheimer's is an irreversible and dynamic neurodegenerative ailment which associated with the age and characterized by serious loss of memory, personality changes, uncommon behaviour and decrease in intellectual capacity. Till now no countermeasure available for Alzheimer's, however symptomatic treatment may enhance memory and other issues related to this disease. Products from natural resources such as medicinal plants have been utilized for the treatment of various memory disorders like amnesia, dementia, Alzheimer's, Parkinson since long time. Various studies depicted the utilization of therapeutic plants for treatment of Alzheimer's. In spite of that exact mode of their action is yet indistinct. Phytochemical investigations of various plant parts have demonstrated presence of numerous bioactive compounds, such as polyphenols, tannins, flavonoids, triterpenes, alkaloids and sterols. These compounds demonstrate an extensive variety of pharmacological activities which includes anticholinesterase, antiinflammatory, antiamyloidogenic, hypolipidemic, and antioxidant effects. This review provides the description of different medicinal plants against Alzheimer's disease.