Alzheimer's disease affects more than 35 million people worldwide, and this number is presumed to double by the year 2050. To date, various methods have been used for probable treatment of Alzheimer’s Disease; ranging from different drugs including Dopenzil and Hydrochloride Medications called cholinesterase inhibitors, that are prescribed for mild to moderate Alzheimer's disease, to different natural remedies such as coconut oil, Ginkgo biloba, and etc. Currently, there is no efficient therapy for this disorder, but a promising approach is represented by nanotechnology. Nanoparticles (NPs), depending on the particle size, charge, hydrophobicity, and surface functionalization, etc., are being used in wide range of fields and industries among which is medical and treatment of common diseases such as, different types of cancers, diabetes, and…; These phenomena cause nanotechnology to play an important role in science and technology. recently, efforts have been made in presenting a new treatment for Alzheimer's disease using Nano structures and Nano drugs. Up to now, various Nano medicines , such as polymeric and metallic nanoparticles, liposomes, micelles dendrimers, Nano emulsions and carbon Nano-tube etc. , have been investigated for effective brain targeting of the drugs , particularly in the treatment and diagnosis of AD. This article, reviews some of these Nano drugs which have been designed for diagnosis and disease progress prevention are mentioned, and at the end, possible future treatments for this disease, are discussed.